15790120

素因数分解:

$2^3\times 5^1\times {\mathrm{37}}^1\times {\mathrm{47}}^1\times {\mathrm{227}}^1$

素因数の和:322

約数の個数: 64

約数和(自身を含む): 37428480

約数和(自身を除く): 21638360

約数列:

[1, 2, 4, 5, 8, 10, 20, 37, 40, 47, 74, 94, 148, 185, 188, 227, 235, 296, 370, 376, 454, 470, 740, 908, 940, 1135, 1480, 1739, 1816, 1880, 2270, 3478, 4540, 6956, 8399, 8695, 9080, 10669, 13912, 16798, 17390, 21338, 33596, 34780, 41995, 42676, 53345, 67192, 69560, 83990, 85352, 106690, 167980, 213380, 335960, 394753, 426760, 789506, 1579012, 1973765, 3158024, 3947530, 7895060, 15790120]

約数ペア:

[(1, 15790120), (2, 7895060), (4, 3947530), (5, 3158024), (8, 1973765), (10, 1579012), (20, 789506), (37, 426760), (40, 394753), (47, 335960), (74, 213380), (94, 167980), (148, 106690), (185, 85352), (188, 83990), (227, 69560), (235, 67192), (296, 53345), (370, 42676), (376, 41995), (454, 34780), (470, 33596), (740, 21338), (908, 17390), (940, 16798), (1135, 13912), (1480, 10669), (1739, 9080), (1816, 8695), (1880, 8399), (2270, 6956), (3478, 4540)]