1397620

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{67}}^1\times {\mathrm{149}}^1$

素因数の和:232

約数の個数: 48

約数和(自身を含む): 3427200

約数和(自身を除く): 2029580

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 67, 70, 134, 140, 149, 268, 298, 335, 469, 596, 670, 745, 938, 1043, 1340, 1490, 1876, 2086, 2345, 2980, 4172, 4690, 5215, 9380, 9983, 10430, 19966, 20860, 39932, 49915, 69881, 99830, 139762, 199660, 279524, 349405, 698810, 1397620]

約数ペア:

[(1, 1397620), (2, 698810), (4, 349405), (5, 279524), (7, 199660), (10, 139762), (14, 99830), (20, 69881), (28, 49915), (35, 39932), (67, 20860), (70, 19966), (134, 10430), (140, 9983), (149, 9380), (268, 5215), (298, 4690), (335, 4172), (469, 2980), (596, 2345), (670, 2086), (745, 1876), (938, 1490), (1043, 1340)]