2130940

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{491}}^1$

素因数の和:538

約数の個数: 48

約数和(自身を含む): 5289984

約数和(自身を除く): 3159044

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 31, 35, 62, 70, 124, 140, 155, 217, 310, 434, 491, 620, 868, 982, 1085, 1964, 2170, 2455, 3437, 4340, 4910, 6874, 9820, 13748, 15221, 17185, 30442, 34370, 60884, 68740, 76105, 106547, 152210, 213094, 304420, 426188, 532735, 1065470, 2130940]

約数ペア:

[(1, 2130940), (2, 1065470), (4, 532735), (5, 426188), (7, 304420), (10, 213094), (14, 152210), (20, 106547), (28, 76105), (31, 68740), (35, 60884), (62, 34370), (70, 30442), (124, 17185), (140, 15221), (155, 13748), (217, 9820), (310, 6874), (434, 4910), (491, 4340), (620, 3437), (868, 2455), (982, 2170), (1085, 1964)]