28540660

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^2\times {\mathrm{59}}^1\times {\mathrm{67}}^1$

素因数の和:173

約数の個数: 72

約数和(自身を含む): 65288160

約数和(自身を除く): 36747500

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 59, 67, 76, 95, 118, 134, 190, 236, 268, 295, 335, 361, 380, 590, 670, 722, 1121, 1180, 1273, 1340, 1444, 1805, 2242, 2546, 3610, 3953, 4484, 5092, 5605, 6365, 7220, 7906, 11210, 12730, 15812, 19765, 21299, 22420, 24187, 25460, 39530, 42598, 48374, 75107, 79060, 85196, 96748, 106495, 120935, 150214, 212990, 241870, 300428, 375535, 425980, 483740, 751070, 1427033, 1502140, 2854066, 5708132, 7135165, 14270330, 28540660]

約数ペア:

[(1, 28540660), (2, 14270330), (4, 7135165), (5, 5708132), (10, 2854066), (19, 1502140), (20, 1427033), (38, 751070), (59, 483740), (67, 425980), (76, 375535), (95, 300428), (118, 241870), (134, 212990), (190, 150214), (236, 120935), (268, 106495), (295, 96748), (335, 85196), (361, 79060), (380, 75107), (590, 48374), (670, 42598), (722, 39530), (1121, 25460), (1180, 24187), (1273, 22420), (1340, 21299), (1444, 19765), (1805, 15812), (2242, 12730), (2546, 11210), (3610, 7906), (3953, 7220), (4484, 6365), (5092, 5605)]