80431980

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{83}}^1\times {\mathrm{521}}^1$

素因数の和:647

約数の個数: 96

約数和(自身を含む): 235726848

約数和(自身を除く): 155294868

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 31, 60, 62, 83, 93, 124, 155, 166, 186, 249, 310, 332, 372, 415, 465, 498, 521, 620, 830, 930, 996, 1042, 1245, 1563, 1660, 1860, 2084, 2490, 2573, 2605, 3126, 4980, 5146, 5210, 6252, 7719, 7815, 10292, 10420, 12865, 15438, 15630, 16151, 25730, 30876, 31260, 32302, 38595, 43243, 48453, 51460, 64604, 77190, 80755, 86486, 96906, 129729, 154380, 161510, 172972, 193812, 216215, 242265, 259458, 323020, 432430, 484530, 518916, 648645, 864860, 969060, 1297290, 1340533, 2594580, 2681066, 4021599, 5362132, 6702665, 8043198, 13405330, 16086396, 20107995, 26810660, 40215990, 80431980]

約数ペア:

[(1, 80431980), (2, 40215990), (3, 26810660), (4, 20107995), (5, 16086396), (6, 13405330), (10, 8043198), (12, 6702665), (15, 5362132), (20, 4021599), (30, 2681066), (31, 2594580), (60, 1340533), (62, 1297290), (83, 969060), (93, 864860), (124, 648645), (155, 518916), (166, 484530), (186, 432430), (249, 323020), (310, 259458), (332, 242265), (372, 216215), (415, 193812), (465, 172972), (498, 161510), (521, 154380), (620, 129729), (830, 96906), (930, 86486), (996, 80755), (1042, 77190), (1245, 64604), (1563, 51460), (1660, 48453), (1860, 43243), (2084, 38595), (2490, 32302), (2573, 31260), (2605, 30876), (3126, 25730), (4980, 16151), (5146, 15630), (5210, 15438), (6252, 12865), (7719, 10420), (7815, 10292)]