20698690

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{313}}^1\times {\mathrm{389}}^1$

素因数の和:726

約数の個数: 32

約数和(自身を含む): 39677040

約数和(自身を除く): 18978350

約数列:

[1, 2, 5, 10, 17, 34, 85, 170, 313, 389, 626, 778, 1565, 1945, 3130, 3890, 5321, 6613, 10642, 13226, 26605, 33065, 53210, 66130, 121757, 243514, 608785, 1217570, 2069869, 4139738, 10349345, 20698690]

約数ペア:

[(1, 20698690), (2, 10349345), (5, 4139738), (10, 2069869), (17, 1217570), (34, 608785), (85, 243514), (170, 121757), (313, 66130), (389, 53210), (626, 33065), (778, 26605), (1565, 13226), (1945, 10642), (3130, 6613), (3890, 5321)]