180837880

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{41}}^1\times {\mathrm{3557}}^1$

素因数の和:3640

約数の個数: 64

約数和(自身を含む): 430375680

約数和(自身を除く): 249537800

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, 2542, 3557, 5084, 6355, 7114, 10168, 12710, 14228, 17785, 25420, 28456, 35570, 50840, 71140, 110267, 142280, 145837, 220534, 291674, 441068, 551335, 583348, 729185, 882136, 1102670, 1166696, 1458370, 2205340, 2916740, 4410680, 4520947, 5833480, 9041894, 18083788, 22604735, 36167576, 45209470, 90418940, 180837880]

約数ペア:

[(1, 180837880), (2, 90418940), (4, 45209470), (5, 36167576), (8, 22604735), (10, 18083788), (20, 9041894), (31, 5833480), (40, 4520947), (41, 4410680), (62, 2916740), (82, 2205340), (124, 1458370), (155, 1166696), (164, 1102670), (205, 882136), (248, 729185), (310, 583348), (328, 551335), (410, 441068), (620, 291674), (820, 220534), (1240, 145837), (1271, 142280), (1640, 110267), (2542, 71140), (3557, 50840), (5084, 35570), (6355, 28456), (7114, 25420), (10168, 17785), (12710, 14228)]