257971560

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{27919}}^1$

素因数の和:27951

約数の個数: 128

約数和(自身を含む): 964915200

約数和(自身を除く): 706943640

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 11, 12, 14, 15, 20, 21, 22, 24, 28, 30, 33, 35, 40, 42, 44, 55, 56, 60, 66, 70, 77, 84, 88, 105, 110, 120, 132, 140, 154, 165, 168, 210, 220, 231, 264, 280, 308, 330, 385, 420, 440, 462, 616, 660, 770, 840, 924, 1155, 1320, 1540, 1848, 2310, 3080, 4620, 9240, 27919, 55838, 83757, 111676, 139595, 167514, 195433, 223352, 279190, 307109, 335028, 390866, 418785, 558380, 586299, 614218, 670056, 781732, 837570, 921327, 977165, 1116760, 1172598, 1228436, 1535545, 1563464, 1675140, 1842654, 1954330, 2149763, 2345196, 2456872, 2931495, 3071090, 3350280, 3685308, 3908660, 4299526, 4606635, 4690392, 5862990, 6142180, 6449289, 7370616, 7817320, 8599052, 9213270, 10748815, 11725980, 12284360, 12898578, 17198104, 18426540, 21497630, 23451960, 25797156, 32246445, 36853080, 42995260, 51594312, 64492890, 85990520, 128985780, 257971560]

約数ペア:

[(1, 257971560), (2, 128985780), (3, 85990520), (4, 64492890), (5, 51594312), (6, 42995260), (7, 36853080), (8, 32246445), (10, 25797156), (11, 23451960), (12, 21497630), (14, 18426540), (15, 17198104), (20, 12898578), (21, 12284360), (22, 11725980), (24, 10748815), (28, 9213270), (30, 8599052), (33, 7817320), (35, 7370616), (40, 6449289), (42, 6142180), (44, 5862990), (55, 4690392), (56, 4606635), (60, 4299526), (66, 3908660), (70, 3685308), (77, 3350280), (84, 3071090), (88, 2931495), (105, 2456872), (110, 2345196), (120, 2149763), (132, 1954330), (140, 1842654), (154, 1675140), (165, 1563464), (168, 1535545), (210, 1228436), (220, 1172598), (231, 1116760), (264, 977165), (280, 921327), (308, 837570), (330, 781732), (385, 670056), (420, 614218), (440, 586299), (462, 558380), (616, 418785), (660, 390866), (770, 335028), (840, 307109), (924, 279190), (1155, 223352), (1320, 195433), (1540, 167514), (1848, 139595), (2310, 111676), (3080, 83757), (4620, 55838), (9240, 27919)]