207157220

素因数分解:

$2^2\times 5^1\times {\mathrm{61}}^1\times {\mathrm{277}}^1\times {\mathrm{613}}^1$

素因数の和:960

約数の個数: 48

約数和(自身を含む): 444481968

約数和(自身を除く): 237324748

約数列:

[1, 2, 4, 5, 10, 20, 61, 122, 244, 277, 305, 554, 610, 613, 1108, 1220, 1226, 1385, 2452, 2770, 3065, 5540, 6130, 12260, 16897, 33794, 37393, 67588, 74786, 84485, 149572, 168970, 169801, 186965, 337940, 339602, 373930, 679204, 747860, 849005, 1698010, 3396020, 10357861, 20715722, 41431444, 51789305, 103578610, 207157220]

約数ペア:

[(1, 207157220), (2, 103578610), (4, 51789305), (5, 41431444), (10, 20715722), (20, 10357861), (61, 3396020), (122, 1698010), (244, 849005), (277, 747860), (305, 679204), (554, 373930), (610, 339602), (613, 337940), (1108, 186965), (1220, 169801), (1226, 168970), (1385, 149572), (2452, 84485), (2770, 74786), (3065, 67588), (5540, 37393), (6130, 33794), (12260, 16897)]