251705120

素因数分解:

$2^5\times 5^1\times {\mathrm{31}}^2\times {\mathrm{1637}}^1$

素因数の和:1714

約数の個数: 72

約数和(自身を含む): 614829852

約数和(自身を除く): 363124732

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 62, 80, 124, 155, 160, 248, 310, 496, 620, 961, 992, 1240, 1637, 1922, 2480, 3274, 3844, 4805, 4960, 6548, 7688, 8185, 9610, 13096, 15376, 16370, 19220, 26192, 30752, 32740, 38440, 50747, 52384, 65480, 76880, 101494, 130960, 153760, 202988, 253735, 261920, 405976, 507470, 811952, 1014940, 1573157, 1623904, 2029880, 3146314, 4059760, 6292628, 7865785, 8119520, 12585256, 15731570, 25170512, 31463140, 50341024, 62926280, 125852560, 251705120]

約数ペア:

[(1, 251705120), (2, 125852560), (4, 62926280), (5, 50341024), (8, 31463140), (10, 25170512), (16, 15731570), (20, 12585256), (31, 8119520), (32, 7865785), (40, 6292628), (62, 4059760), (80, 3146314), (124, 2029880), (155, 1623904), (160, 1573157), (248, 1014940), (310, 811952), (496, 507470), (620, 405976), (961, 261920), (992, 253735), (1240, 202988), (1637, 153760), (1922, 130960), (2480, 101494), (3274, 76880), (3844, 65480), (4805, 52384), (4960, 50747), (6548, 38440), (7688, 32740), (8185, 30752), (9610, 26192), (13096, 19220), (15376, 16370)]