204511960

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{131}}^1\times {\mathrm{1259}}^1$

素因数の和:1432

約数の個数: 64

約数和(自身を含む): 479001600

約数和(自身を除く): 274489640

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 124, 131, 155, 248, 262, 310, 524, 620, 655, 1048, 1240, 1259, 1310, 2518, 2620, 4061, 5036, 5240, 6295, 8122, 10072, 12590, 16244, 20305, 25180, 32488, 39029, 40610, 50360, 78058, 81220, 156116, 162440, 164929, 195145, 312232, 329858, 390290, 659716, 780580, 824645, 1319432, 1561160, 1649290, 3298580, 5112799, 6597160, 10225598, 20451196, 25563995, 40902392, 51127990, 102255980, 204511960]

約数ペア:

[(1, 204511960), (2, 102255980), (4, 51127990), (5, 40902392), (8, 25563995), (10, 20451196), (20, 10225598), (31, 6597160), (40, 5112799), (62, 3298580), (124, 1649290), (131, 1561160), (155, 1319432), (248, 824645), (262, 780580), (310, 659716), (524, 390290), (620, 329858), (655, 312232), (1048, 195145), (1240, 164929), (1259, 162440), (1310, 156116), (2518, 81220), (2620, 78058), (4061, 50360), (5036, 40610), (5240, 39029), (6295, 32488), (8122, 25180), (10072, 20305), (12590, 16244)]