291216760

素因数分解:

$2^3\times 5^1\times {\mathrm{2273}}^1\times {\mathrm{3203}}^1$

素因数の和:5487

約数の個数: 32

約数和(自身を含む): 655730640

約数和(自身を除く): 364513880

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 2273, 3203, 4546, 6406, 9092, 11365, 12812, 16015, 18184, 22730, 25624, 32030, 45460, 64060, 90920, 128120, 7280419, 14560838, 29121676, 36402095, 58243352, 72804190, 145608380, 291216760]

約数ペア:

[(1, 291216760), (2, 145608380), (4, 72804190), (5, 58243352), (8, 36402095), (10, 29121676), (20, 14560838), (40, 7280419), (2273, 128120), (3203, 90920), (4546, 64060), (6406, 45460), (9092, 32030), (11365, 25624), (12812, 22730), (16015, 18184)]