2019957985

素因数分解:

$5^1\times {\mathrm{31}}^1\times {\mathrm{149}}^2\times {\mathrm{587}}^1$

素因数の和:921

約数の個数: 24

約数和(自身を含む): 2523338496

約数和(自身を除く): 503380511

約数列:

[1, 5, 31, 149, 155, 587, 745, 2935, 4619, 18197, 22201, 23095, 87463, 90985, 111005, 437315, 688231, 2711353, 3441155, 13031987, 13556765, 65159935, 403991597, 2019957985]

約数ペア:

[(1, 2019957985), (5, 403991597), (31, 65159935), (149, 13556765), (155, 13031987), (587, 3441155), (745, 2711353), (2935, 688231), (4619, 437315), (18197, 111005), (22201, 90985), (23095, 87463)]