161971680

素因数分解:

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

素因数の和:389

約数の個数: 192

約数和(自身を含む): 557057088

約数和(自身を除く): 395085408

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, 65, 78, 80, 96, 101, 104, 120, 130, 156, 160, 195, 202, 208, 240, 257, 260, 303, 312, 390, 404, 416, 480, 505, 514, 520, 606, 624, 771, 780, 808, 1010, 1028, 1040, 1212, 1248, 1285, 1313, 1515, 1542, 1560, 1616, 2020, 2056, 2080, 2424, 2570, 2626, 3030, 3084, 3120, 3232, 3341, 3855, 3939, 4040, 4112, 4848, 5140, 5252, 6060, 6168, 6240, 6565, 6682, 7710, 7878, 8080, 8224, 9696, 10023, 10280, 10504, 12120, 12336, 13130, 13364, 15420, 15756, 16160, 16705, 19695, 20046, 20560, 21008, 24240, 24672, 25957, 26260, 26728, 30840, 31512, 33410, 39390, 40092, 41120, 42016, 48480, 50115, 51914, 52520, 53456, 61680, 63024, 66820, 77871, 78780, 80184, 100230, 103828, 105040, 106912, 123360, 126048, 129785, 133640, 155742, 157560, 160368, 200460, 207656, 210080, 259570, 267280, 311484, 315120, 320736, 337441, 389355, 400920, 415312, 519140, 534560, 622968, 630240, 674882, 778710, 801840, 830624, 1012323, 1038280, 1245936, 1349764, 1557420, 1603680, 1687205, 2024646, 2076560, 2491872, 2699528, 3114840, 3374410, 4049292, 4153120, 5061615, 5399056, 6229680, 6748820, 8098584, 10123230, 10798112, 12459360, 13497640, 16197168, 20246460, 26995280, 32394336, 40492920, 53990560, 80985840, 161971680]

約数ペア:

[(1, 161971680), (2, 80985840), (3, 53990560), (4, 40492920), (5, 32394336), (6, 26995280), (8, 20246460), (10, 16197168), (12, 13497640), (13, 12459360), (15, 10798112), (16, 10123230), (20, 8098584), (24, 6748820), (26, 6229680), (30, 5399056), (32, 5061615), (39, 4153120), (40, 4049292), (48, 3374410), (52, 3114840), (60, 2699528), (65, 2491872), (78, 2076560), (80, 2024646), (96, 1687205), (101, 1603680), (104, 1557420), (120, 1349764), (130, 1245936), (156, 1038280), (160, 1012323), (195, 830624), (202, 801840), (208, 778710), (240, 674882), (257, 630240), (260, 622968), (303, 534560), (312, 519140), (390, 415312), (404, 400920), (416, 389355), (480, 337441), (505, 320736), (514, 315120), (520, 311484), (606, 267280), (624, 259570), (771, 210080), (780, 207656), (808, 200460), (1010, 160368), (1028, 157560), (1040, 155742), (1212, 133640), (1248, 129785), (1285, 126048), (1313, 123360), (1515, 106912), (1542, 105040), (1560, 103828), (1616, 100230), (2020, 80184), (2056, 78780), (2080, 77871), (2424, 66820), (2570, 63024), (2626, 61680), (3030, 53456), (3084, 52520), (3120, 51914), (3232, 50115), (3341, 48480), (3855, 42016), (3939, 41120), (4040, 40092), (4112, 39390), (4848, 33410), (5140, 31512), (5252, 30840), (6060, 26728), (6168, 26260), (6240, 25957), (6565, 24672), (6682, 24240), (7710, 21008), (7878, 20560), (8080, 20046), (8224, 19695), (9696, 16705), (10023, 16160), (10280, 15756), (10504, 15420), (12120, 13364), (12336, 13130)]