31990260

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{79}}^1\times {\mathrm{397}}^1$

素因数の和:505

約数の個数: 96

約数和(自身を含む): 96284160

約数和(自身を除く): 64293900

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 17, 20, 30, 34, 51, 60, 68, 79, 85, 102, 158, 170, 204, 237, 255, 316, 340, 395, 397, 474, 510, 790, 794, 948, 1020, 1185, 1191, 1343, 1580, 1588, 1985, 2370, 2382, 2686, 3970, 4029, 4740, 4764, 5372, 5955, 6715, 6749, 7940, 8058, 11910, 13430, 13498, 16116, 20145, 20247, 23820, 26860, 26996, 31363, 33745, 40290, 40494, 62726, 67490, 80580, 80988, 94089, 101235, 125452, 134980, 156815, 188178, 202470, 313630, 376356, 404940, 470445, 533171, 627260, 940890, 1066342, 1599513, 1881780, 2132684, 2665855, 3199026, 5331710, 6398052, 7997565, 10663420, 15995130, 31990260]

約数ペア:

[(1, 31990260), (2, 15995130), (3, 10663420), (4, 7997565), (5, 6398052), (6, 5331710), (10, 3199026), (12, 2665855), (15, 2132684), (17, 1881780), (20, 1599513), (30, 1066342), (34, 940890), (51, 627260), (60, 533171), (68, 470445), (79, 404940), (85, 376356), (102, 313630), (158, 202470), (170, 188178), (204, 156815), (237, 134980), (255, 125452), (316, 101235), (340, 94089), (395, 80988), (397, 80580), (474, 67490), (510, 62726), (790, 40494), (794, 40290), (948, 33745), (1020, 31363), (1185, 26996), (1191, 26860), (1343, 23820), (1580, 20247), (1588, 20145), (1985, 16116), (2370, 13498), (2382, 13430), (2686, 11910), (3970, 8058), (4029, 7940), (4740, 6749), (4764, 6715), (5372, 5955)]