262410040

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{431}}^1\times {\mathrm{491}}^1$

素因数の和:964

約数の個数: 64

約数和(自身を含む): 612126720

約数和(自身を除く): 349716680

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 124, 155, 248, 310, 431, 491, 620, 862, 982, 1240, 1724, 1964, 2155, 2455, 3448, 3928, 4310, 4910, 8620, 9820, 13361, 15221, 17240, 19640, 26722, 30442, 53444, 60884, 66805, 76105, 106888, 121768, 133610, 152210, 211621, 267220, 304420, 423242, 534440, 608840, 846484, 1058105, 1692968, 2116210, 4232420, 6560251, 8464840, 13120502, 26241004, 32801255, 52482008, 65602510, 131205020, 262410040]

約数ペア:

[(1, 262410040), (2, 131205020), (4, 65602510), (5, 52482008), (8, 32801255), (10, 26241004), (20, 13120502), (31, 8464840), (40, 6560251), (62, 4232420), (124, 2116210), (155, 1692968), (248, 1058105), (310, 846484), (431, 608840), (491, 534440), (620, 423242), (862, 304420), (982, 267220), (1240, 211621), (1724, 152210), (1964, 133610), (2155, 121768), (2455, 106888), (3448, 76105), (3928, 66805), (4310, 60884), (4910, 53444), (8620, 30442), (9820, 26722), (13361, 19640), (15221, 17240)]