394872010

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{70639}}^1$

素因数の和:70702

約数の個数: 32

約数和(自身を含む): 783256320

約数和(自身を除く): 388384310

約数列:

[1, 2, 5, 10, 13, 26, 43, 65, 86, 130, 215, 430, 559, 1118, 2795, 5590, 70639, 141278, 353195, 706390, 918307, 1836614, 3037477, 4591535, 6074954, 9183070, 15187385, 30374770, 39487201, 78974402, 197436005, 394872010]

約数ペア:

[(1, 394872010), (2, 197436005), (5, 78974402), (10, 39487201), (13, 30374770), (26, 15187385), (43, 9183070), (65, 6074954), (86, 4591535), (130, 3037477), (215, 1836614), (430, 918307), (559, 706390), (1118, 353195), (2795, 141278), (5590, 70639)]