128712458

素因数分解:

$2^1\times 7^1\times {\mathrm{149}}^1\times {\mathrm{61703}}^1$

素因数の和:61861

約数の個数: 16

約数和(自身を含む): 222134400

約数和(自身を除く): 93421942

約数列:

[1, 2, 7, 14, 149, 298, 1043, 2086, 61703, 123406, 431921, 863842, 9193747, 18387494, 64356229, 128712458]

約数ペア:

[(1, 128712458), (2, 64356229), (7, 18387494), (14, 9193747), (149, 863842), (298, 431921), (1043, 123406), (2086, 61703)]