213722990

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{181}}^1\times {\mathrm{293}}^1$

素因数の和:525

約数の個数: 64

約数和(自身を含む): 431488512

約数和(自身を除く): 217765522

約数列:

[1, 2, 5, 10, 13, 26, 31, 62, 65, 130, 155, 181, 293, 310, 362, 403, 586, 806, 905, 1465, 1810, 2015, 2353, 2930, 3809, 4030, 4706, 5611, 7618, 9083, 11222, 11765, 18166, 19045, 23530, 28055, 38090, 45415, 53033, 56110, 72943, 90830, 106066, 118079, 145886, 236158, 265165, 364715, 530330, 590395, 689429, 729430, 1180790, 1378858, 1644023, 3288046, 3447145, 6894290, 8220115, 16440230, 21372299, 42744598, 106861495, 213722990]

約数ペア:

[(1, 213722990), (2, 106861495), (5, 42744598), (10, 21372299), (13, 16440230), (26, 8220115), (31, 6894290), (62, 3447145), (65, 3288046), (130, 1644023), (155, 1378858), (181, 1180790), (293, 729430), (310, 689429), (362, 590395), (403, 530330), (586, 364715), (806, 265165), (905, 236158), (1465, 145886), (1810, 118079), (2015, 106066), (2353, 90830), (2930, 72943), (3809, 56110), (4030, 53033), (4706, 45415), (5611, 38090), (7618, 28055), (9083, 23530), (11222, 19045), (11765, 18166)]