19981050

素因数分解:

$2^1\times 3^1\times 5^2\times {\mathrm{31}}^1\times {\mathrm{4297}}^1$

素因数の和:4343

約数の個数: 48

約数和(自身を含む): 51163392

約数和(自身を除く): 31182342

約数列:

[1, 2, 3, 5, 6, 10, 15, 25, 30, 31, 50, 62, 75, 93, 150, 155, 186, 310, 465, 775, 930, 1550, 2325, 4297, 4650, 8594, 12891, 21485, 25782, 42970, 64455, 107425, 128910, 133207, 214850, 266414, 322275, 399621, 644550, 666035, 799242, 1332070, 1998105, 3330175, 3996210, 6660350, 9990525, 19981050]

約数ペア:

[(1, 19981050), (2, 9990525), (3, 6660350), (5, 3996210), (6, 3330175), (10, 1998105), (15, 1332070), (25, 799242), (30, 666035), (31, 644550), (50, 399621), (62, 322275), (75, 266414), (93, 214850), (150, 133207), (155, 128910), (186, 107425), (310, 64455), (465, 42970), (775, 25782), (930, 21485), (1550, 12891), (2325, 8594), (4297, 4650)]