31858700

素因数分解:

$2^2\times 5^2\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{239}}^1$

素因数の和:327

約数の個数: 72

約数和(自身を含む): 73328640

約数和(自身を除く): 41469940

約数列:

[1, 2, 4, 5, 10, 20, 25, 31, 43, 50, 62, 86, 100, 124, 155, 172, 215, 239, 310, 430, 478, 620, 775, 860, 956, 1075, 1195, 1333, 1550, 2150, 2390, 2666, 3100, 4300, 4780, 5332, 5975, 6665, 7409, 10277, 11950, 13330, 14818, 20554, 23900, 26660, 29636, 33325, 37045, 41108, 51385, 66650, 74090, 102770, 133300, 148180, 185225, 205540, 256925, 318587, 370450, 513850, 637174, 740900, 1027700, 1274348, 1592935, 3185870, 6371740, 7964675, 15929350, 31858700]

約数ペア:

[(1, 31858700), (2, 15929350), (4, 7964675), (5, 6371740), (10, 3185870), (20, 1592935), (25, 1274348), (31, 1027700), (43, 740900), (50, 637174), (62, 513850), (86, 370450), (100, 318587), (124, 256925), (155, 205540), (172, 185225), (215, 148180), (239, 133300), (310, 102770), (430, 74090), (478, 66650), (620, 51385), (775, 41108), (860, 37045), (956, 33325), (1075, 29636), (1195, 26660), (1333, 23900), (1550, 20554), (2150, 14818), (2390, 13330), (2666, 11950), (3100, 10277), (4300, 7409), (4780, 6665), (5332, 5975)]