64917760

素因数分解:

$2^8\times 5^1\times {\mathrm{41}}^1\times {\mathrm{1237}}^1$

素因数の和:1299

約数の個数: 72

約数和(自身を含む): 159419736

約数和(自身を除く): 94501976

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 41, 64, 80, 82, 128, 160, 164, 205, 256, 320, 328, 410, 640, 656, 820, 1237, 1280, 1312, 1640, 2474, 2624, 3280, 4948, 5248, 6185, 6560, 9896, 10496, 12370, 13120, 19792, 24740, 26240, 39584, 49480, 50717, 52480, 79168, 98960, 101434, 158336, 197920, 202868, 253585, 316672, 395840, 405736, 507170, 791680, 811472, 1014340, 1583360, 1622944, 2028680, 3245888, 4057360, 6491776, 8114720, 12983552, 16229440, 32458880, 64917760]

約数ペア:

[(1, 64917760), (2, 32458880), (4, 16229440), (5, 12983552), (8, 8114720), (10, 6491776), (16, 4057360), (20, 3245888), (32, 2028680), (40, 1622944), (41, 1583360), (64, 1014340), (80, 811472), (82, 791680), (128, 507170), (160, 405736), (164, 395840), (205, 316672), (256, 253585), (320, 202868), (328, 197920), (410, 158336), (640, 101434), (656, 98960), (820, 79168), (1237, 52480), (1280, 50717), (1312, 49480), (1640, 39584), (2474, 26240), (2624, 24740), (3280, 19792), (4948, 13120), (5248, 12370), (6185, 10496), (6560, 9896)]