1978730

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{491}}^1$

素因数の和:542

約数の個数: 32

約数和(自身を含む): 3967488

約数和(自身を除く): 1988758

約数列:

[1, 2, 5, 10, 13, 26, 31, 62, 65, 130, 155, 310, 403, 491, 806, 982, 2015, 2455, 4030, 4910, 6383, 12766, 15221, 30442, 31915, 63830, 76105, 152210, 197873, 395746, 989365, 1978730]

約数ペア:

[(1, 1978730), (2, 989365), (5, 395746), (10, 197873), (13, 152210), (26, 76105), (31, 63830), (62, 31915), (65, 30442), (130, 15221), (155, 12766), (310, 6383), (403, 4910), (491, 4030), (806, 2455), (982, 2015)]