1809140

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^2\times {\mathrm{313}}^1$

素因数の和:356

約数の個数: 36

約数和(自身を含む): 4048716

約数和(自身を除く): 2239576

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 289, 313, 340, 578, 626, 1156, 1252, 1445, 1565, 2890, 3130, 5321, 5780, 6260, 10642, 21284, 26605, 53210, 90457, 106420, 180914, 361828, 452285, 904570, 1809140]

約数ペア:

[(1, 1809140), (2, 904570), (4, 452285), (5, 361828), (10, 180914), (17, 106420), (20, 90457), (34, 53210), (68, 26605), (85, 21284), (170, 10642), (289, 6260), (313, 5780), (340, 5321), (578, 3130), (626, 2890), (1156, 1565), (1252, 1445)]