82971200

素因数分解:

$2^6\times 5^2\times {\mathrm{13}}^1\times {\mathrm{3989}}^1$

素因数の和:4024

約数の個数: 84

約数和(自身を含む): 219920820

約数和(自身を除く): 136949620

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 25, 26, 32, 40, 50, 52, 64, 65, 80, 100, 104, 130, 160, 200, 208, 260, 320, 325, 400, 416, 520, 650, 800, 832, 1040, 1300, 1600, 2080, 2600, 3989, 4160, 5200, 7978, 10400, 15956, 19945, 20800, 31912, 39890, 51857, 63824, 79780, 99725, 103714, 127648, 159560, 199450, 207428, 255296, 259285, 319120, 398900, 414856, 518570, 638240, 797800, 829712, 1037140, 1276480, 1296425, 1595600, 1659424, 2074280, 2592850, 3191200, 3318848, 4148560, 5185700, 6382400, 8297120, 10371400, 16594240, 20742800, 41485600, 82971200]

約数ペア:

[(1, 82971200), (2, 41485600), (4, 20742800), (5, 16594240), (8, 10371400), (10, 8297120), (13, 6382400), (16, 5185700), (20, 4148560), (25, 3318848), (26, 3191200), (32, 2592850), (40, 2074280), (50, 1659424), (52, 1595600), (64, 1296425), (65, 1276480), (80, 1037140), (100, 829712), (104, 797800), (130, 638240), (160, 518570), (200, 414856), (208, 398900), (260, 319120), (320, 259285), (325, 255296), (400, 207428), (416, 199450), (520, 159560), (650, 127648), (800, 103714), (832, 99725), (1040, 79780), (1300, 63824), (1600, 51857), (2080, 39890), (2600, 31912), (3989, 20800), (4160, 19945), (5200, 15956), (7978, 10400)]