28208040

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{33581}}^1$

素因数の和:33602

約数の個数: 64

約数和(自身を含む): 96716160

約数和(自身を除く): 68508120

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 56, 60, 70, 84, 105, 120, 140, 168, 210, 280, 420, 840, 33581, 67162, 100743, 134324, 167905, 201486, 235067, 268648, 335810, 402972, 470134, 503715, 671620, 705201, 805944, 940268, 1007430, 1175335, 1343240, 1410402, 1880536, 2014860, 2350670, 2820804, 3526005, 4029720, 4701340, 5641608, 7052010, 9402680, 14104020, 28208040]

約数ペア:

[(1, 28208040), (2, 14104020), (3, 9402680), (4, 7052010), (5, 5641608), (6, 4701340), (7, 4029720), (8, 3526005), (10, 2820804), (12, 2350670), (14, 2014860), (15, 1880536), (20, 1410402), (21, 1343240), (24, 1175335), (28, 1007430), (30, 940268), (35, 805944), (40, 705201), (42, 671620), (56, 503715), (60, 470134), (70, 402972), (84, 335810), (105, 268648), (120, 235067), (140, 201486), (168, 167905), (210, 134324), (280, 100743), (420, 67162), (840, 33581)]