521509540

素因数分解:

$2^2\times 5^1\times {\mathrm{241}}^1\times {\mathrm{257}}^1\times {\mathrm{421}}^1$

素因数の和:928

約数の個数: 48

約数和(自身を含む): 1106615664

約数和(自身を除く): 585106124

約数列:

[1, 2, 4, 5, 10, 20, 241, 257, 421, 482, 514, 842, 964, 1028, 1205, 1285, 1684, 2105, 2410, 2570, 4210, 4820, 5140, 8420, 61937, 101461, 108197, 123874, 202922, 216394, 247748, 309685, 405844, 432788, 507305, 540985, 619370, 1014610, 1081970, 1238740, 2029220, 2163940, 26075477, 52150954, 104301908, 130377385, 260754770, 521509540]

約数ペア:

[(1, 521509540), (2, 260754770), (4, 130377385), (5, 104301908), (10, 52150954), (20, 26075477), (241, 2163940), (257, 2029220), (421, 1238740), (482, 1081970), (514, 1014610), (842, 619370), (964, 540985), (1028, 507305), (1205, 432788), (1285, 405844), (1684, 309685), (2105, 247748), (2410, 216394), (2570, 202922), (4210, 123874), (4820, 108197), (5140, 101461), (8420, 61937)]