28386680

素因数分解:

$2^3\times 5^1\times 7^3\times {\mathrm{2069}}^1$

素因数の和:2101

約数の個数: 64

約数和(自身を含む): 74520000

約数和(自身を除く): 46133320

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 49, 56, 70, 98, 140, 196, 245, 280, 343, 392, 490, 686, 980, 1372, 1715, 1960, 2069, 2744, 3430, 4138, 6860, 8276, 10345, 13720, 14483, 16552, 20690, 28966, 41380, 57932, 72415, 82760, 101381, 115864, 144830, 202762, 289660, 405524, 506905, 579320, 709667, 811048, 1013810, 1419334, 2027620, 2838668, 3548335, 4055240, 5677336, 7096670, 14193340, 28386680]

約数ペア:

[(1, 28386680), (2, 14193340), (4, 7096670), (5, 5677336), (7, 4055240), (8, 3548335), (10, 2838668), (14, 2027620), (20, 1419334), (28, 1013810), (35, 811048), (40, 709667), (49, 579320), (56, 506905), (70, 405524), (98, 289660), (140, 202762), (196, 144830), (245, 115864), (280, 101381), (343, 82760), (392, 72415), (490, 57932), (686, 41380), (980, 28966), (1372, 20690), (1715, 16552), (1960, 14483), (2069, 13720), (2744, 10345), (3430, 8276), (4138, 6860)]