20458779795

素因数分解:

$3^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{387587}}^1$

素因数の和:387641

約数の個数: 64

約数和(自身を含む): 40185123840

約数和(自身を除く): 19726344045

約数列:

[1, 3, 5, 9, 15, 17, 23, 27, 45, 51, 69, 85, 115, 135, 153, 207, 255, 345, 391, 459, 621, 765, 1035, 1173, 1955, 2295, 3105, 3519, 5865, 10557, 17595, 52785, 387587, 1162761, 1937935, 3488283, 5813805, 6588979, 8914501, 10464849, 17441415, 19766937, 26743503, 32944895, 44572505, 52324245, 59300811, 80230509, 98834685, 133717515, 151546517, 177902433, 240691527, 296504055, 401152545, 454639551, 757732585, 889512165, 1203457635, 1363918653, 2273197755, 4091755959, 6819593265, 20458779795]

約数ペア:

[(1, 20458779795), (3, 6819593265), (5, 4091755959), (9, 2273197755), (15, 1363918653), (17, 1203457635), (23, 889512165), (27, 757732585), (45, 454639551), (51, 401152545), (69, 296504055), (85, 240691527), (115, 177902433), (135, 151546517), (153, 133717515), (207, 98834685), (255, 80230509), (345, 59300811), (391, 52324245), (459, 44572505), (621, 32944895), (765, 26743503), (1035, 19766937), (1173, 17441415), (1955, 10464849), (2295, 8914501), (3105, 6588979), (3519, 5813805), (5865, 3488283), (10557, 1937935), (17595, 1162761), (52785, 387587)]