289790840

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{426163}}^1$

素因数の和:426191

約数の個数: 32

約数和(自身を含む): 690385680

約数和(自身を除く): 400594840

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 68, 85, 136, 170, 340, 680, 426163, 852326, 1704652, 2130815, 3409304, 4261630, 7244771, 8523260, 14489542, 17046520, 28979084, 36223855, 57958168, 72447710, 144895420, 289790840]

約数ペア:

[(1, 289790840), (2, 144895420), (4, 72447710), (5, 57958168), (8, 36223855), (10, 28979084), (17, 17046520), (20, 14489542), (34, 8523260), (40, 7244771), (68, 4261630), (85, 3409304), (136, 2130815), (170, 1704652), (340, 852326), (680, 426163)]