20783350

素因数分解:

$2^1\times 5^2\times 7^2\times {\mathrm{17}}^1\times {\mathrm{499}}^1$

素因数の和:542

約数の個数: 72

約数和(自身を含む): 47709000

約数和(自身を除く): 26925650

約数列:

[1, 2, 5, 7, 10, 14, 17, 25, 34, 35, 49, 50, 70, 85, 98, 119, 170, 175, 238, 245, 350, 425, 490, 499, 595, 833, 850, 998, 1190, 1225, 1666, 2450, 2495, 2975, 3493, 4165, 4990, 5950, 6986, 8330, 8483, 12475, 16966, 17465, 20825, 24451, 24950, 34930, 41650, 42415, 48902, 59381, 84830, 87325, 118762, 122255, 174650, 212075, 244510, 296905, 415667, 424150, 593810, 611275, 831334, 1222550, 1484525, 2078335, 2969050, 4156670, 10391675, 20783350]

約数ペア:

[(1, 20783350), (2, 10391675), (5, 4156670), (7, 2969050), (10, 2078335), (14, 1484525), (17, 1222550), (25, 831334), (34, 611275), (35, 593810), (49, 424150), (50, 415667), (70, 296905), (85, 244510), (98, 212075), (119, 174650), (170, 122255), (175, 118762), (238, 87325), (245, 84830), (350, 59381), (425, 48902), (490, 42415), (499, 41650), (595, 34930), (833, 24950), (850, 24451), (998, 20825), (1190, 17465), (1225, 16966), (1666, 12475), (2450, 8483), (2495, 8330), (2975, 6986), (3493, 5950), (4165, 4990)]