81808480

素因数分解:

$2^5\times 5^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{1063}}^1$

素因数の和:1128

約数の個数: 96

約数和(自身を含む): 213966144

約数和(自身を除く): 132157664

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 37, 40, 52, 65, 74, 80, 104, 130, 148, 160, 185, 208, 260, 296, 370, 416, 481, 520, 592, 740, 962, 1040, 1063, 1184, 1480, 1924, 2080, 2126, 2405, 2960, 3848, 4252, 4810, 5315, 5920, 7696, 8504, 9620, 10630, 13819, 15392, 17008, 19240, 21260, 27638, 34016, 38480, 39331, 42520, 55276, 69095, 76960, 78662, 85040, 110552, 138190, 157324, 170080, 196655, 221104, 276380, 314648, 393310, 442208, 511303, 552760, 629296, 786620, 1022606, 1105520, 1258592, 1573240, 2045212, 2211040, 2556515, 3146480, 4090424, 5113030, 6292960, 8180848, 10226060, 16361696, 20452120, 40904240, 81808480]

約数ペア:

[(1, 81808480), (2, 40904240), (4, 20452120), (5, 16361696), (8, 10226060), (10, 8180848), (13, 6292960), (16, 5113030), (20, 4090424), (26, 3146480), (32, 2556515), (37, 2211040), (40, 2045212), (52, 1573240), (65, 1258592), (74, 1105520), (80, 1022606), (104, 786620), (130, 629296), (148, 552760), (160, 511303), (185, 442208), (208, 393310), (260, 314648), (296, 276380), (370, 221104), (416, 196655), (481, 170080), (520, 157324), (592, 138190), (740, 110552), (962, 85040), (1040, 78662), (1063, 76960), (1184, 69095), (1480, 55276), (1924, 42520), (2080, 39331), (2126, 38480), (2405, 34016), (2960, 27638), (3848, 21260), (4252, 19240), (4810, 17008), (5315, 15392), (5920, 13819), (7696, 10630), (8504, 9620)]