680074280

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{491}}^1\times {\mathrm{1117}}^1$

素因数の和:1650

約数の個数: 64

約数和(自身を含む): 1584161280

約数和(自身を除く): 904087000

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 124, 155, 248, 310, 491, 620, 982, 1117, 1240, 1964, 2234, 2455, 3928, 4468, 4910, 5585, 8936, 9820, 11170, 15221, 19640, 22340, 30442, 34627, 44680, 60884, 69254, 76105, 121768, 138508, 152210, 173135, 277016, 304420, 346270, 548447, 608840, 692540, 1096894, 1385080, 2193788, 2742235, 4387576, 5484470, 10968940, 17001857, 21937880, 34003714, 68007428, 85009285, 136014856, 170018570, 340037140, 680074280]

約数ペア:

[(1, 680074280), (2, 340037140), (4, 170018570), (5, 136014856), (8, 85009285), (10, 68007428), (20, 34003714), (31, 21937880), (40, 17001857), (62, 10968940), (124, 5484470), (155, 4387576), (248, 2742235), (310, 2193788), (491, 1385080), (620, 1096894), (982, 692540), (1117, 608840), (1240, 548447), (1964, 346270), (2234, 304420), (2455, 277016), (3928, 173135), (4468, 152210), (4910, 138508), (5585, 121768), (8936, 76105), (9820, 69254), (11170, 60884), (15221, 44680), (19640, 34627), (22340, 30442)]