31281236

素因数分解:

$2^2\times 7^1\times {\mathrm{53}}^1\times {\mathrm{107}}^1\times {\mathrm{197}}^1$

素因数の和:368

約数の個数: 48

約数和(自身を含む): 64665216

約数和(自身を除く): 33383980

約数列:

[1, 2, 4, 7, 14, 28, 53, 106, 107, 197, 212, 214, 371, 394, 428, 742, 749, 788, 1379, 1484, 1498, 2758, 2996, 5516, 5671, 10441, 11342, 20882, 21079, 22684, 39697, 41764, 42158, 73087, 79394, 84316, 146174, 147553, 158788, 292348, 295106, 590212, 1117187, 2234374, 4468748, 7820309, 15640618, 31281236]

約数ペア:

[(1, 31281236), (2, 15640618), (4, 7820309), (7, 4468748), (14, 2234374), (28, 1117187), (53, 590212), (106, 295106), (107, 292348), (197, 158788), (212, 147553), (214, 146174), (371, 84316), (394, 79394), (428, 73087), (742, 42158), (749, 41764), (788, 39697), (1379, 22684), (1484, 21079), (1498, 20882), (2758, 11342), (2996, 10441), (5516, 5671)]