87495640

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{41}}^1\times {\mathrm{1721}}^1$

素因数の和:1804

約数の個数: 64

約数和(自身を含む): 208293120

約数和(自身を除く): 120797480

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 41, 62, 82, 124, 155, 164, 205, 248, 310, 328, 410, 620, 820, 1240, 1271, 1640, 1721, 2542, 3442, 5084, 6355, 6884, 8605, 10168, 12710, 13768, 17210, 25420, 34420, 50840, 53351, 68840, 70561, 106702, 141122, 213404, 266755, 282244, 352805, 426808, 533510, 564488, 705610, 1067020, 1411220, 2134040, 2187391, 2822440, 4374782, 8749564, 10936955, 17499128, 21873910, 43747820, 87495640]

約数ペア:

[(1, 87495640), (2, 43747820), (4, 21873910), (5, 17499128), (8, 10936955), (10, 8749564), (20, 4374782), (31, 2822440), (40, 2187391), (41, 2134040), (62, 1411220), (82, 1067020), (124, 705610), (155, 564488), (164, 533510), (205, 426808), (248, 352805), (310, 282244), (328, 266755), (410, 213404), (620, 141122), (820, 106702), (1240, 70561), (1271, 68840), (1640, 53351), (1721, 50840), (2542, 34420), (3442, 25420), (5084, 17210), (6355, 13768), (6884, 12710), (8605, 10168)]