51317890

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{47}}^1\times {\mathrm{227}}^1$

素因数の和:331

約数の個数: 64

約数和(自身を含む): 104799744

約数和(自身を除く): 53481854

約数列:

[1, 2, 5, 10, 13, 26, 37, 47, 65, 74, 94, 130, 185, 227, 235, 370, 454, 470, 481, 611, 962, 1135, 1222, 1739, 2270, 2405, 2951, 3055, 3478, 4810, 5902, 6110, 8399, 8695, 10669, 14755, 16798, 17390, 21338, 22607, 29510, 41995, 45214, 53345, 83990, 106690, 109187, 113035, 138697, 218374, 226070, 277394, 394753, 545935, 693485, 789506, 1091870, 1386970, 1973765, 3947530, 5131789, 10263578, 25658945, 51317890]

約数ペア:

[(1, 51317890), (2, 25658945), (5, 10263578), (10, 5131789), (13, 3947530), (26, 1973765), (37, 1386970), (47, 1091870), (65, 789506), (74, 693485), (94, 545935), (130, 394753), (185, 277394), (227, 226070), (235, 218374), (370, 138697), (454, 113035), (470, 109187), (481, 106690), (611, 83990), (962, 53345), (1135, 45214), (1222, 41995), (1739, 29510), (2270, 22607), (2405, 21338), (2951, 17390), (3055, 16798), (3478, 14755), (4810, 10669), (5902, 8695), (6110, 8399)]