20364675

素因数分解:

$3^1\times 5^2\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{461}}^1$

素因数の和:524

約数の個数: 48

約数和(自身を含む): 36664320

約数和(自身を除く): 16299645

約数列:

[1, 3, 5, 15, 19, 25, 31, 57, 75, 93, 95, 155, 285, 461, 465, 475, 589, 775, 1383, 1425, 1767, 2305, 2325, 2945, 6915, 8759, 8835, 11525, 14291, 14725, 26277, 34575, 42873, 43795, 44175, 71455, 131385, 214365, 218975, 271529, 357275, 656925, 814587, 1071825, 1357645, 4072935, 6788225, 20364675]

約数ペア:

[(1, 20364675), (3, 6788225), (5, 4072935), (15, 1357645), (19, 1071825), (25, 814587), (31, 656925), (57, 357275), (75, 271529), (93, 218975), (95, 214365), (155, 131385), (285, 71455), (461, 44175), (465, 43795), (475, 42873), (589, 34575), (775, 26277), (1383, 14725), (1425, 14291), (1767, 11525), (2305, 8835), (2325, 8759), (2945, 6915)]