318296840

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{197}}^1\times {\mathrm{1303}}^1$

素因数の和:1542

約数の個数: 64

約数和(自身を含む): 743592960

約数和(自身を除く): 425296120

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 124, 155, 197, 248, 310, 394, 620, 788, 985, 1240, 1303, 1576, 1970, 2606, 3940, 5212, 6107, 6515, 7880, 10424, 12214, 13030, 24428, 26060, 30535, 40393, 48856, 52120, 61070, 80786, 122140, 161572, 201965, 244280, 256691, 323144, 403930, 513382, 807860, 1026764, 1283455, 1615720, 2053528, 2566910, 5133820, 7957421, 10267640, 15914842, 31829684, 39787105, 63659368, 79574210, 159148420, 318296840]

約数ペア:

[(1, 318296840), (2, 159148420), (4, 79574210), (5, 63659368), (8, 39787105), (10, 31829684), (20, 15914842), (31, 10267640), (40, 7957421), (62, 5133820), (124, 2566910), (155, 2053528), (197, 1615720), (248, 1283455), (310, 1026764), (394, 807860), (620, 513382), (788, 403930), (985, 323144), (1240, 256691), (1303, 244280), (1576, 201965), (1970, 161572), (2606, 122140), (3940, 80786), (5212, 61070), (6107, 52120), (6515, 48856), (7880, 40393), (10424, 30535), (12214, 26060), (13030, 24428)]