80980820

素因数分解:

$2^2\times 5^1\times {\mathrm{53}}^1\times {\mathrm{241}}^1\times {\mathrm{317}}^1$

素因数の和:620

約数の個数: 48

約数和(自身を含む): 174536208

約数和(自身を除く): 93555388

約数列:

[1, 2, 4, 5, 10, 20, 53, 106, 212, 241, 265, 317, 482, 530, 634, 964, 1060, 1205, 1268, 1585, 2410, 3170, 4820, 6340, 12773, 16801, 25546, 33602, 51092, 63865, 67204, 76397, 84005, 127730, 152794, 168010, 255460, 305588, 336020, 381985, 763970, 1527940, 4049041, 8098082, 16196164, 20245205, 40490410, 80980820]

約数ペア:

[(1, 80980820), (2, 40490410), (4, 20245205), (5, 16196164), (10, 8098082), (20, 4049041), (53, 1527940), (106, 763970), (212, 381985), (241, 336020), (265, 305588), (317, 255460), (482, 168010), (530, 152794), (634, 127730), (964, 84005), (1060, 76397), (1205, 67204), (1268, 63865), (1585, 51092), (2410, 33602), (3170, 25546), (4820, 16801), (6340, 12773)]