20388868995

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{316033}}^1$

素因数の和:316092

約数の個数: 64

約数和(自身を含む): 39319686144

約数和(自身を除く): 18930817149

約数列:

[1, 3, 5, 11, 15, 17, 23, 33, 51, 55, 69, 85, 115, 165, 187, 253, 255, 345, 391, 561, 759, 935, 1173, 1265, 1955, 2805, 3795, 4301, 5865, 12903, 21505, 64515, 316033, 948099, 1580165, 3476363, 4740495, 5372561, 7268759, 10429089, 16117683, 17381815, 21806277, 26862805, 36343795, 52145445, 59098171, 79956349, 80588415, 109031385, 123568903, 177294513, 239869047, 295490855, 370706709, 399781745, 617844515, 886472565, 1199345235, 1359257933, 1853533545, 4077773799, 6796289665, 20388868995]

約数ペア:

[(1, 20388868995), (3, 6796289665), (5, 4077773799), (11, 1853533545), (15, 1359257933), (17, 1199345235), (23, 886472565), (33, 617844515), (51, 399781745), (55, 370706709), (69, 295490855), (85, 239869047), (115, 177294513), (165, 123568903), (187, 109031385), (253, 80588415), (255, 79956349), (345, 59098171), (391, 52145445), (561, 36343795), (759, 26862805), (935, 21806277), (1173, 17381815), (1265, 16117683), (1955, 10429089), (2805, 7268759), (3795, 5372561), (4301, 4740495), (5865, 3476363), (12903, 1580165), (21505, 948099), (64515, 316033)]