157429720

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{7919}}^1$

素因数の和:8008

約数の個数: 64

約数和(自身を含む): 410572800

約数和(自身を除く): 253143080

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 71, 140, 142, 280, 284, 355, 497, 568, 710, 994, 1420, 1988, 2485, 2840, 3976, 4970, 7919, 9940, 15838, 19880, 31676, 39595, 55433, 63352, 79190, 110866, 158380, 221732, 277165, 316760, 443464, 554330, 562249, 1108660, 1124498, 2217320, 2248996, 2811245, 3935743, 4497992, 5622490, 7871486, 11244980, 15742972, 19678715, 22489960, 31485944, 39357430, 78714860, 157429720]

約数ペア:

[(1, 157429720), (2, 78714860), (4, 39357430), (5, 31485944), (7, 22489960), (8, 19678715), (10, 15742972), (14, 11244980), (20, 7871486), (28, 5622490), (35, 4497992), (40, 3935743), (56, 2811245), (70, 2248996), (71, 2217320), (140, 1124498), (142, 1108660), (280, 562249), (284, 554330), (355, 443464), (497, 316760), (568, 277165), (710, 221732), (994, 158380), (1420, 110866), (1988, 79190), (2485, 63352), (2840, 55433), (3976, 39595), (4970, 31676), (7919, 19880), (9940, 15838)]