81756480

素因数分解:

$2^6\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{6551}}^1$

素因数の和:6584

約数の個数: 112

約数和(自身を含む): 279586944

約数和(自身を除く): 197830464

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, 64, 65, 78, 80, 96, 104, 120, 130, 156, 160, 192, 195, 208, 240, 260, 312, 320, 390, 416, 480, 520, 624, 780, 832, 960, 1040, 1248, 1560, 2080, 2496, 3120, 4160, 6240, 6551, 12480, 13102, 19653, 26204, 32755, 39306, 52408, 65510, 78612, 85163, 98265, 104816, 131020, 157224, 170326, 196530, 209632, 255489, 262040, 314448, 340652, 393060, 419264, 425815, 510978, 524080, 628896, 681304, 786120, 851630, 1021956, 1048160, 1257792, 1277445, 1362608, 1572240, 1703260, 2043912, 2096320, 2554890, 2725216, 3144480, 3406520, 4087824, 5109780, 5450432, 6288960, 6813040, 8175648, 10219560, 13626080, 16351296, 20439120, 27252160, 40878240, 81756480]

約数ペア:

[(1, 81756480), (2, 40878240), (3, 27252160), (4, 20439120), (5, 16351296), (6, 13626080), (8, 10219560), (10, 8175648), (12, 6813040), (13, 6288960), (15, 5450432), (16, 5109780), (20, 4087824), (24, 3406520), (26, 3144480), (30, 2725216), (32, 2554890), (39, 2096320), (40, 2043912), (48, 1703260), (52, 1572240), (60, 1362608), (64, 1277445), (65, 1257792), (78, 1048160), (80, 1021956), (96, 851630), (104, 786120), (120, 681304), (130, 628896), (156, 524080), (160, 510978), (192, 425815), (195, 419264), (208, 393060), (240, 340652), (260, 314448), (312, 262040), (320, 255489), (390, 209632), (416, 196530), (480, 170326), (520, 157224), (624, 131020), (780, 104816), (832, 98265), (960, 85163), (1040, 78612), (1248, 65510), (1560, 52408), (2080, 39306), (2496, 32755), (3120, 26204), (4160, 19653), (6240, 13102), (6551, 12480)]