20533790

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{53}}^2$

素因数の和:173

約数の個数: 48

約数和(自身を含む): 40814928

約数和(自身を除く): 20281138

約数列:

[1, 2, 5, 10, 17, 34, 43, 53, 85, 86, 106, 170, 215, 265, 430, 530, 731, 901, 1462, 1802, 2279, 2809, 3655, 4505, 4558, 5618, 7310, 9010, 11395, 14045, 22790, 28090, 38743, 47753, 77486, 95506, 120787, 193715, 238765, 241574, 387430, 477530, 603935, 1207870, 2053379, 4106758, 10266895, 20533790]

約数ペア:

[(1, 20533790), (2, 10266895), (5, 4106758), (10, 2053379), (17, 1207870), (34, 603935), (43, 477530), (53, 387430), (85, 241574), (86, 238765), (106, 193715), (170, 120787), (215, 95506), (265, 77486), (430, 47753), (530, 38743), (731, 28090), (901, 22790), (1462, 14045), (1802, 11395), (2279, 9010), (2809, 7310), (3655, 5618), (4505, 4558)]