279970040

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{14083}}^1$

素因数の和:14172

約数の個数: 64

約数和(自身を含む): 730114560

約数和(自身を除く): 450144520

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, 9940, 14083, 19880, 28166, 56332, 70415, 98581, 112664, 140830, 197162, 281660, 394324, 492905, 563320, 788648, 985810, 999893, 1971620, 1999786, 3943240, 3999572, 4999465, 6999251, 7999144, 9998930, 13998502, 19997860, 27997004, 34996255, 39995720, 55994008, 69992510, 139985020, 279970040]

約数ペア:

[(1, 279970040), (2, 139985020), (4, 69992510), (5, 55994008), (7, 39995720), (8, 34996255), (10, 27997004), (14, 19997860), (20, 13998502), (28, 9998930), (35, 7999144), (40, 6999251), (56, 4999465), (70, 3999572), (71, 3943240), (140, 1999786), (142, 1971620), (280, 999893), (284, 985810), (355, 788648), (497, 563320), (568, 492905), (710, 394324), (994, 281660), (1420, 197162), (1988, 140830), (2485, 112664), (2840, 98581), (3976, 70415), (4970, 56332), (9940, 28166), (14083, 19880)]