20933240

素因数分解:

$2^3\times 5^1\times {\mathrm{419}}^1\times {\mathrm{1249}}^1$

素因数の和:1679

約数の個数: 32

約数和(自身を含む): 47250000

約数和(自身を除く): 26316760

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 419, 838, 1249, 1676, 2095, 2498, 3352, 4190, 4996, 6245, 8380, 9992, 12490, 16760, 24980, 49960, 523331, 1046662, 2093324, 2616655, 4186648, 5233310, 10466620, 20933240]

約数ペア:

[(1, 20933240), (2, 10466620), (4, 5233310), (5, 4186648), (8, 2616655), (10, 2093324), (20, 1046662), (40, 523331), (419, 49960), (838, 24980), (1249, 16760), (1676, 12490), (2095, 9992), (2498, 8380), (3352, 6245), (4190, 4996)]