28080460

素因数分解:

$2^2\times 5^1\times {\mathrm{53}}^1\times {\mathrm{59}}^1\times {\mathrm{449}}^1$

素因数の和:570

約数の個数: 48

約数和(自身を含む): 61236000

約数和(自身を除く): 33155540

約数列:

[1, 2, 4, 5, 10, 20, 53, 59, 106, 118, 212, 236, 265, 295, 449, 530, 590, 898, 1060, 1180, 1796, 2245, 3127, 4490, 6254, 8980, 12508, 15635, 23797, 26491, 31270, 47594, 52982, 62540, 95188, 105964, 118985, 132455, 237970, 264910, 475940, 529820, 1404023, 2808046, 5616092, 7020115, 14040230, 28080460]

約数ペア:

[(1, 28080460), (2, 14040230), (4, 7020115), (5, 5616092), (10, 2808046), (20, 1404023), (53, 529820), (59, 475940), (106, 264910), (118, 237970), (212, 132455), (236, 118985), (265, 105964), (295, 95188), (449, 62540), (530, 52982), (590, 47594), (898, 31270), (1060, 26491), (1180, 23797), (1796, 15635), (2245, 12508), (3127, 8980), (4490, 6254)]