221146610980

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^2\times {\mathrm{157}}^1\times {\mathrm{41897}}^1$

素因数の和:42145

約数の個数: 72

約数和(自身を含む): 479054525544

約数和(自身を除く): 257907914564

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 157, 164, 205, 314, 410, 628, 785, 820, 1570, 1681, 3140, 3362, 6437, 6724, 8405, 12874, 16810, 25748, 32185, 33620, 41897, 64370, 83794, 128740, 167588, 209485, 263917, 418970, 527834, 837940, 1055668, 1319585, 1717777, 2639170, 3435554, 5278340, 6577829, 6871108, 8588885, 13155658, 17177770, 26311316, 32889145, 34355540, 65778290, 70428857, 131556580, 140857714, 269690989, 281715428, 352144285, 539381978, 704288570, 1078763956, 1348454945, 1408577140, 2696909890, 5393819780, 11057330549, 22114661098, 44229322196, 55286652745, 110573305490, 221146610980]

約数ペア:

[(1, 221146610980), (2, 110573305490), (4, 55286652745), (5, 44229322196), (10, 22114661098), (20, 11057330549), (41, 5393819780), (82, 2696909890), (157, 1408577140), (164, 1348454945), (205, 1078763956), (314, 704288570), (410, 539381978), (628, 352144285), (785, 281715428), (820, 269690989), (1570, 140857714), (1681, 131556580), (3140, 70428857), (3362, 65778290), (6437, 34355540), (6724, 32889145), (8405, 26311316), (12874, 17177770), (16810, 13155658), (25748, 8588885), (32185, 6871108), (33620, 6577829), (41897, 5278340), (64370, 3435554), (83794, 2639170), (128740, 1717777), (167588, 1319585), (209485, 1055668), (263917, 837940), (418970, 527834)]