18109460

素因数分解:

$2^2\times 5^1\times {\mathrm{59}}^1\times {\mathrm{103}}^1\times {\mathrm{149}}^1$

素因数の和:320

約数の個数: 48

約数和(自身を含む): 39312000

約数和(自身を除く): 21202540

約数列:

[1, 2, 4, 5, 10, 20, 59, 103, 118, 149, 206, 236, 295, 298, 412, 515, 590, 596, 745, 1030, 1180, 1490, 2060, 2980, 6077, 8791, 12154, 15347, 17582, 24308, 30385, 30694, 35164, 43955, 60770, 61388, 76735, 87910, 121540, 153470, 175820, 306940, 905473, 1810946, 3621892, 4527365, 9054730, 18109460]

約数ペア:

[(1, 18109460), (2, 9054730), (4, 4527365), (5, 3621892), (10, 1810946), (20, 905473), (59, 306940), (103, 175820), (118, 153470), (149, 121540), (206, 87910), (236, 76735), (295, 61388), (298, 60770), (412, 43955), (515, 35164), (590, 30694), (596, 30385), (745, 24308), (1030, 17582), (1180, 15347), (1490, 12154), (2060, 8791), (2980, 6077)]