19891507080

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{61}}^1\times {\mathrm{127}}^1\times {\mathrm{21397}}^1$

素因数の和:21599

約数の個数: 128

約数和(自身を含む): 61133230080

約数和(自身を除く): 41241723000

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 61, 120, 122, 127, 183, 244, 254, 305, 366, 381, 488, 508, 610, 635, 732, 762, 915, 1016, 1220, 1270, 1464, 1524, 1830, 1905, 2440, 2540, 3048, 3660, 3810, 5080, 7320, 7620, 7747, 15240, 15494, 21397, 23241, 30988, 38735, 42794, 46482, 61976, 64191, 77470, 85588, 92964, 106985, 116205, 128382, 154940, 171176, 185928, 213970, 232410, 256764, 309880, 320955, 427940, 464820, 513528, 641910, 855880, 929640, 1283820, 1305217, 2567640, 2610434, 2717419, 3915651, 5220868, 5434838, 6526085, 7831302, 8152257, 10441736, 10869676, 13052170, 13587095, 15662604, 16304514, 19578255, 21739352, 26104340, 27174190, 31325208, 32609028, 39156510, 40761285, 52208680, 54348380, 65218056, 78313020, 81522570, 108696760, 156626040, 163045140, 165762559, 326090280, 331525118, 497287677, 663050236, 828812795, 994575354, 1326100472, 1657625590, 1989150708, 2486438385, 3315251180, 3978301416, 4972876770, 6630502360, 9945753540, 19891507080]

約数ペア:

[(1, 19891507080), (2, 9945753540), (3, 6630502360), (4, 4972876770), (5, 3978301416), (6, 3315251180), (8, 2486438385), (10, 1989150708), (12, 1657625590), (15, 1326100472), (20, 994575354), (24, 828812795), (30, 663050236), (40, 497287677), (60, 331525118), (61, 326090280), (120, 165762559), (122, 163045140), (127, 156626040), (183, 108696760), (244, 81522570), (254, 78313020), (305, 65218056), (366, 54348380), (381, 52208680), (488, 40761285), (508, 39156510), (610, 32609028), (635, 31325208), (732, 27174190), (762, 26104340), (915, 21739352), (1016, 19578255), (1220, 16304514), (1270, 15662604), (1464, 13587095), (1524, 13052170), (1830, 10869676), (1905, 10441736), (2440, 8152257), (2540, 7831302), (3048, 6526085), (3660, 5434838), (3810, 5220868), (5080, 3915651), (7320, 2717419), (7620, 2610434), (7747, 2567640), (15240, 1305217), (15494, 1283820), (21397, 929640), (23241, 855880), (30988, 641910), (38735, 513528), (42794, 464820), (46482, 427940), (61976, 320955), (64191, 309880), (77470, 256764), (85588, 232410), (92964, 213970), (106985, 185928), (116205, 171176), (128382, 154940)]