About the Number

20123493385

20123493384 ← → 20123493386

2進数表記:10010101111011101000010010000001001

漢数字表記:二百一億二千三百四十九万三千三百八十五

素因数分解:

5 1 × 17 2 × 23 1 × 29 1 × 20879 1

素因数の和:20970
約数の個数: 48
約数和(自身を含む): 27691891200
約数和(自身を除く): 7568397815

約数列:
[1, 5, 17, 23, 29, 85, 115, 145, 289, 391, 493, 667, 1445, 1955, 2465, 3335, 6647, 8381, 11339, 20879, 33235, 41905, 56695, 104395, 192763, 354943, 480217, 605491, 963815, 1774715, 2401085, 3027455, 6034031, 8163689, 10293347, 13926293, 30170155, 40818445, 51466735, 69631465, 138782713, 174986899, 236746981, 693913565, 874934495, 1183734905, 4024698677, 20123493385]

約数ペア:
[(1, 20123493385), (5, 4024698677), (17, 1183734905), (23, 874934495), (29, 693913565), (85, 236746981), (115, 174986899), (145, 138782713), (289, 69631465), (391, 51466735), (493, 40818445), (667, 30170155), (1445, 13926293), (1955, 10293347), (2465, 8163689), (3335, 6034031), (6647, 3027455), (8381, 2401085), (11339, 1774715), (20879, 963815), (33235, 605491), (41905, 480217), (56695, 354943), (104395, 192763)]

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