2129888980

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{79}}^1\times {\mathrm{70949}}^1$

素因数の和:71056

約数の個数: 48

約数和(自身を含む): 4767840000

約数和(自身を除く): 2637951020

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 79, 95, 158, 190, 316, 380, 395, 790, 1501, 1580, 3002, 6004, 7505, 15010, 30020, 70949, 141898, 283796, 354745, 709490, 1348031, 1418980, 2696062, 5392124, 5604971, 6740155, 11209942, 13480310, 22419884, 26960620, 28024855, 56049710, 106494449, 112099420, 212988898, 425977796, 532472245, 1064944490, 2129888980]

約数ペア:

[(1, 2129888980), (2, 1064944490), (4, 532472245), (5, 425977796), (10, 212988898), (19, 112099420), (20, 106494449), (38, 56049710), (76, 28024855), (79, 26960620), (95, 22419884), (158, 13480310), (190, 11209942), (316, 6740155), (380, 5604971), (395, 5392124), (790, 2696062), (1501, 1418980), (1580, 1348031), (3002, 709490), (6004, 354745), (7505, 283796), (15010, 141898), (30020, 70949)]