389939620

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{1097}}^1\times {\mathrm{2539}}^1$

素因数の和:3652

約数の個数: 48

約数和(自身を含む): 937077120

約数和(自身を除く): 547137500

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 1097, 2194, 2539, 4388, 5078, 5485, 7679, 10156, 10970, 12695, 15358, 17773, 21940, 25390, 30716, 35546, 38395, 50780, 71092, 76790, 88865, 153580, 177730, 355460, 2785283, 5570566, 11141132, 13926415, 19496981, 27852830, 38993962, 55705660, 77987924, 97484905, 194969810, 389939620]

約数ペア:

[(1, 389939620), (2, 194969810), (4, 97484905), (5, 77987924), (7, 55705660), (10, 38993962), (14, 27852830), (20, 19496981), (28, 13926415), (35, 11141132), (70, 5570566), (140, 2785283), (1097, 355460), (2194, 177730), (2539, 153580), (4388, 88865), (5078, 76790), (5485, 71092), (7679, 50780), (10156, 38395), (10970, 35546), (12695, 30716), (15358, 25390), (17773, 21940)]