20595160

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{977}}^1$

素因数の和:1036

約数の個数: 64

約数和(自身を含む): 50699520

約数和(自身を除く): 30104360

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 31, 34, 40, 62, 68, 85, 124, 136, 155, 170, 248, 310, 340, 527, 620, 680, 977, 1054, 1240, 1954, 2108, 2635, 3908, 4216, 4885, 5270, 7816, 9770, 10540, 16609, 19540, 21080, 30287, 33218, 39080, 60574, 66436, 83045, 121148, 132872, 151435, 166090, 242296, 302870, 332180, 514879, 605740, 664360, 1029758, 1211480, 2059516, 2574395, 4119032, 5148790, 10297580, 20595160]

約数ペア:

[(1, 20595160), (2, 10297580), (4, 5148790), (5, 4119032), (8, 2574395), (10, 2059516), (17, 1211480), (20, 1029758), (31, 664360), (34, 605740), (40, 514879), (62, 332180), (68, 302870), (85, 242296), (124, 166090), (136, 151435), (155, 132872), (170, 121148), (248, 83045), (310, 66436), (340, 60574), (527, 39080), (620, 33218), (680, 30287), (977, 21080), (1054, 19540), (1240, 16609), (1954, 10540), (2108, 9770), (2635, 7816), (3908, 5270), (4216, 4885)]