400078890

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{4445321}}^1$

素因数の和:4445334

約数の個数: 24

約数和(自身を含む): 1040205348

約数和(自身を除く): 640126458

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 45, 90, 4445321, 8890642, 13335963, 22226605, 26671926, 40007889, 44453210, 66679815, 80015778, 133359630, 200039445, 400078890]

約数ペア:

[(1, 400078890), (2, 200039445), (3, 133359630), (5, 80015778), (6, 66679815), (9, 44453210), (10, 40007889), (15, 26671926), (18, 22226605), (30, 13335963), (45, 8890642), (90, 4445321)]