31170700

素因数分解:

$2^2\times 5^2\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{659}}^1$

素因数の和:727

約数の個数: 72

約数和(自身を含む): 75620160

約数和(自身を除く): 44449460

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 25, 43, 44, 50, 55, 86, 100, 110, 172, 215, 220, 275, 430, 473, 550, 659, 860, 946, 1075, 1100, 1318, 1892, 2150, 2365, 2636, 3295, 4300, 4730, 6590, 7249, 9460, 11825, 13180, 14498, 16475, 23650, 28337, 28996, 32950, 36245, 47300, 56674, 65900, 72490, 113348, 141685, 144980, 181225, 283370, 311707, 362450, 566740, 623414, 708425, 724900, 1246828, 1416850, 1558535, 2833700, 3117070, 6234140, 7792675, 15585350, 31170700]

約数ペア:

[(1, 31170700), (2, 15585350), (4, 7792675), (5, 6234140), (10, 3117070), (11, 2833700), (20, 1558535), (22, 1416850), (25, 1246828), (43, 724900), (44, 708425), (50, 623414), (55, 566740), (86, 362450), (100, 311707), (110, 283370), (172, 181225), (215, 144980), (220, 141685), (275, 113348), (430, 72490), (473, 65900), (550, 56674), (659, 47300), (860, 36245), (946, 32950), (1075, 28996), (1100, 28337), (1318, 23650), (1892, 16475), (2150, 14498), (2365, 13180), (2636, 11825), (3295, 9460), (4300, 7249), (4730, 6590)]