80985840

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{101}}^1\times {\mathrm{257}}^1$

素因数の和:387

約数の個数: 160

約数和(自身を含む): 274107456

約数和(自身を除く): 193121616

約数列:

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

約数ペア:

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