647886720

素因数分解:

$2^7\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{101}}^1\times {\mathrm{257}}^1$

素因数の和:393

約数の個数: 256

約数和(自身を含む): 2254754880

約数和(自身を除く): 1606868160

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 16, 20, 24, 26, 30, 32, 39, 40, 48, 52, 60, 64, 65, 78, 80, 96, 101, 104, 120, 128, 130, 156, 160, 192, 195, 202, 208, 240, 257, 260, 303, 312, 320, 384, 390, 404, 416, 480, 505, 514, 520, 606, 624, 640, 771, 780, 808, 832, 960, 1010, 1028, 1040, 1212, 1248, 1285, 1313, 1515, 1542, 1560, 1616, 1664, 1920, 2020, 2056, 2080, 2424, 2496, 2570, 2626, 3030, 3084, 3120, 3232, 3341, 3855, 3939, 4040, 4112, 4160, 4848, 4992, 5140, 5252, 6060, 6168, 6240, 6464, 6565, 6682, 7710, 7878, 8080, 8224, 8320, 9696, 10023, 10280, 10504, 12120, 12336, 12480, 12928, 13130, 13364, 15420, 15756, 16160, 16448, 16705, 19392, 19695, 20046, 20560, 21008, 24240, 24672, 24960, 25957, 26260, 26728, 30840, 31512, 32320, 32896, 33410, 38784, 39390, 40092, 41120, 42016, 48480, 49344, 50115, 51914, 52520, 53456, 61680, 63024, 64640, 66820, 77871, 78780, 80184, 82240, 84032, 96960, 98688, 100230, 103828, 105040, 106912, 123360, 126048, 129785, 133640, 155742, 157560, 160368, 164480, 168064, 193920, 200460, 207656, 210080, 213824, 246720, 252096, 259570, 267280, 311484, 315120, 320736, 337441, 389355, 400920, 415312, 420160, 427648, 493440, 504192, 519140, 534560, 622968, 630240, 641472, 674882, 778710, 801840, 830624, 840320, 1012323, 1038280, 1069120, 1245936, 1260480, 1282944, 1349764, 1557420, 1603680, 1661248, 1687205, 2024646, 2076560, 2138240, 2491872, 2520960, 2699528, 3114840, 3207360, 3322496, 3374410, 4049292, 4153120, 4983744, 5061615, 5399056, 6229680, 6414720, 6748820, 8098584, 8306240, 9967488, 10123230, 10798112, 12459360, 13497640, 16197168, 16612480, 20246460, 21596224, 24918720, 26995280, 32394336, 40492920, 43192448, 49837440, 53990560, 64788672, 80985840, 107981120, 129577344, 161971680, 215962240, 323943360, 647886720]

約数ペア:

[(1, 647886720), (2, 323943360), (3, 215962240), (4, 161971680), (5, 129577344), (6, 107981120), (8, 80985840), (10, 64788672), (12, 53990560), (13, 49837440), (15, 43192448), (16, 40492920), (20, 32394336), (24, 26995280), (26, 24918720), (30, 21596224), (32, 20246460), (39, 16612480), (40, 16197168), (48, 13497640), (52, 12459360), (60, 10798112), (64, 10123230), (65, 9967488), (78, 8306240), (80, 8098584), (96, 6748820), (101, 6414720), (104, 6229680), (120, 5399056), (128, 5061615), (130, 4983744), (156, 4153120), (160, 4049292), (192, 3374410), (195, 3322496), (202, 3207360), (208, 3114840), (240, 2699528), (257, 2520960), (260, 2491872), (303, 2138240), (312, 2076560), (320, 2024646), (384, 1687205), (390, 1661248), (404, 1603680), (416, 1557420), (480, 1349764), (505, 1282944), (514, 1260480), (520, 1245936), (606, 1069120), (624, 1038280), (640, 1012323), (771, 840320), (780, 830624), (808, 801840), (832, 778710), (960, 674882), (1010, 641472), (1028, 630240), (1040, 622968), (1212, 534560), (1248, 519140), (1285, 504192), (1313, 493440), (1515, 427648), (1542, 420160), (1560, 415312), (1616, 400920), (1664, 389355), (1920, 337441), (2020, 320736), (2056, 315120), (2080, 311484), (2424, 267280), (2496, 259570), (2570, 252096), (2626, 246720), (3030, 213824), (3084, 210080), (3120, 207656), (3232, 200460), (3341, 193920), (3855, 168064), (3939, 164480), (4040, 160368), (4112, 157560), (4160, 155742), (4848, 133640), (4992, 129785), (5140, 126048), (5252, 123360), (6060, 106912), (6168, 105040), (6240, 103828), (6464, 100230), (6565, 98688), (6682, 96960), (7710, 84032), (7878, 82240), (8080, 80184), (8224, 78780), (8320, 77871), (9696, 66820), (10023, 64640), (10280, 63024), (10504, 61680), (12120, 53456), (12336, 52520), (12480, 51914), (12928, 50115), (13130, 49344), (13364, 48480), (15420, 42016), (15756, 41120), (16160, 40092), (16448, 39390), (16705, 38784), (19392, 33410), (19695, 32896), (20046, 32320), (20560, 31512), (21008, 30840), (24240, 26728), (24672, 26260), (24960, 25957)]