87185680

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{1399}}^1$

素因数の和:1472

約数の個数: 80

約数和(自身を含む): 218736000

約数和(自身を除く): 131550320

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 38, 40, 41, 76, 80, 82, 95, 152, 164, 190, 205, 304, 328, 380, 410, 656, 760, 779, 820, 1399, 1520, 1558, 1640, 2798, 3116, 3280, 3895, 5596, 6232, 6995, 7790, 11192, 12464, 13990, 15580, 22384, 26581, 27980, 31160, 53162, 55960, 57359, 62320, 106324, 111920, 114718, 132905, 212648, 229436, 265810, 286795, 425296, 458872, 531620, 573590, 917744, 1063240, 1089821, 1147180, 2126480, 2179642, 2294360, 4359284, 4588720, 5449105, 8718568, 10898210, 17437136, 21796420, 43592840, 87185680]

約数ペア:

[(1, 87185680), (2, 43592840), (4, 21796420), (5, 17437136), (8, 10898210), (10, 8718568), (16, 5449105), (19, 4588720), (20, 4359284), (38, 2294360), (40, 2179642), (41, 2126480), (76, 1147180), (80, 1089821), (82, 1063240), (95, 917744), (152, 573590), (164, 531620), (190, 458872), (205, 425296), (304, 286795), (328, 265810), (380, 229436), (410, 212648), (656, 132905), (760, 114718), (779, 111920), (820, 106324), (1399, 62320), (1520, 57359), (1558, 55960), (1640, 53162), (2798, 31160), (3116, 27980), (3280, 26581), (3895, 22384), (5596, 15580), (6232, 13990), (6995, 12464), (7790, 11192)]