31185820

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{37}}^2\times {\mathrm{67}}^1$

素因数の和:167

約数の個数: 72

約数和(自身を含む): 72331056

約数和(自身を除く): 41145236

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 37, 67, 68, 74, 85, 134, 148, 170, 185, 268, 335, 340, 370, 629, 670, 740, 1139, 1258, 1340, 1369, 2278, 2479, 2516, 2738, 3145, 4556, 4958, 5476, 5695, 6290, 6845, 9916, 11390, 12395, 12580, 13690, 22780, 23273, 24790, 27380, 42143, 46546, 49580, 84286, 91723, 93092, 116365, 168572, 183446, 210715, 232730, 366892, 421430, 458615, 465460, 842860, 917230, 1559291, 1834460, 3118582, 6237164, 7796455, 15592910, 31185820]

約数ペア:

[(1, 31185820), (2, 15592910), (4, 7796455), (5, 6237164), (10, 3118582), (17, 1834460), (20, 1559291), (34, 917230), (37, 842860), (67, 465460), (68, 458615), (74, 421430), (85, 366892), (134, 232730), (148, 210715), (170, 183446), (185, 168572), (268, 116365), (335, 93092), (340, 91723), (370, 84286), (629, 49580), (670, 46546), (740, 42143), (1139, 27380), (1258, 24790), (1340, 23273), (1369, 22780), (2278, 13690), (2479, 12580), (2516, 12395), (2738, 11390), (3145, 9916), (4556, 6845), (4958, 6290), (5476, 5695)]