157430420

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{149}}^1\times {\mathrm{7547}}^1$

素因数の和:7712

約数の個数: 48

約数和(自身を含む): 380419200

約数和(自身を除く): 222988780

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 149, 298, 596, 745, 1043, 1490, 2086, 2980, 4172, 5215, 7547, 10430, 15094, 20860, 30188, 37735, 52829, 75470, 105658, 150940, 211316, 264145, 528290, 1056580, 1124503, 2249006, 4498012, 5622515, 7871521, 11245030, 15743042, 22490060, 31486084, 39357605, 78715210, 157430420]

約数ペア:

[(1, 157430420), (2, 78715210), (4, 39357605), (5, 31486084), (7, 22490060), (10, 15743042), (14, 11245030), (20, 7871521), (28, 5622515), (35, 4498012), (70, 2249006), (140, 1124503), (149, 1056580), (298, 528290), (596, 264145), (745, 211316), (1043, 150940), (1490, 105658), (2086, 75470), (2980, 52829), (4172, 37735), (5215, 30188), (7547, 20860), (10430, 15094)]