81442580

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{7727}}^1$

素因数の和:7784

約数の個数: 48

約数和(自身を含む): 186955776

約数和(自身を除く): 105513196

約数列:

[1, 2, 4, 5, 10, 17, 20, 31, 34, 62, 68, 85, 124, 155, 170, 310, 340, 527, 620, 1054, 2108, 2635, 5270, 7727, 10540, 15454, 30908, 38635, 77270, 131359, 154540, 239537, 262718, 479074, 525436, 656795, 958148, 1197685, 1313590, 2395370, 2627180, 4072129, 4790740, 8144258, 16288516, 20360645, 40721290, 81442580]

約数ペア:

[(1, 81442580), (2, 40721290), (4, 20360645), (5, 16288516), (10, 8144258), (17, 4790740), (20, 4072129), (31, 2627180), (34, 2395370), (62, 1313590), (68, 1197685), (85, 958148), (124, 656795), (155, 525436), (170, 479074), (310, 262718), (340, 239537), (527, 154540), (620, 131359), (1054, 77270), (2108, 38635), (2635, 30908), (5270, 15454), (7727, 10540)]