28178500

素因数分解:

$2^2\times 5^3\times 7^1\times {\mathrm{83}}^1\times {\mathrm{97}}^1$

素因数の和:206

約数の個数: 96

約数和(自身を含む): 71914752

約数和(自身を除く): 43736252

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 25, 28, 35, 50, 70, 83, 97, 100, 125, 140, 166, 175, 194, 250, 332, 350, 388, 415, 485, 500, 581, 679, 700, 830, 875, 970, 1162, 1358, 1660, 1750, 1940, 2075, 2324, 2425, 2716, 2905, 3395, 3500, 4150, 4850, 5810, 6790, 8051, 8300, 9700, 10375, 11620, 12125, 13580, 14525, 16102, 16975, 20750, 24250, 29050, 32204, 33950, 40255, 41500, 48500, 56357, 58100, 67900, 72625, 80510, 84875, 112714, 145250, 161020, 169750, 201275, 225428, 281785, 290500, 339500, 402550, 563570, 805100, 1006375, 1127140, 1408925, 2012750, 2817850, 4025500, 5635700, 7044625, 14089250, 28178500]

約数ペア:

[(1, 28178500), (2, 14089250), (4, 7044625), (5, 5635700), (7, 4025500), (10, 2817850), (14, 2012750), (20, 1408925), (25, 1127140), (28, 1006375), (35, 805100), (50, 563570), (70, 402550), (83, 339500), (97, 290500), (100, 281785), (125, 225428), (140, 201275), (166, 169750), (175, 161020), (194, 145250), (250, 112714), (332, 84875), (350, 80510), (388, 72625), (415, 67900), (485, 58100), (500, 56357), (581, 48500), (679, 41500), (700, 40255), (830, 33950), (875, 32204), (970, 29050), (1162, 24250), (1358, 20750), (1660, 16975), (1750, 16102), (1940, 14525), (2075, 13580), (2324, 12125), (2425, 11620), (2716, 10375), (2905, 9700), (3395, 8300), (3500, 8051), (4150, 6790), (4850, 5810)]