15504940

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^2\times {\mathrm{43}}^1\times {\mathrm{149}}^1$

素因数の和:223

約数の個数: 72

約数和(自身を含む): 36867600

約数和(自身を除く): 21362660

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 43, 44, 55, 86, 110, 121, 149, 172, 215, 220, 242, 298, 430, 473, 484, 596, 605, 745, 860, 946, 1210, 1490, 1639, 1892, 2365, 2420, 2980, 3278, 4730, 5203, 6407, 6556, 8195, 9460, 10406, 12814, 16390, 18029, 20812, 25628, 26015, 32035, 32780, 36058, 52030, 64070, 70477, 72116, 90145, 104060, 128140, 140954, 180290, 281908, 352385, 360580, 704770, 775247, 1409540, 1550494, 3100988, 3876235, 7752470, 15504940]

約数ペア:

[(1, 15504940), (2, 7752470), (4, 3876235), (5, 3100988), (10, 1550494), (11, 1409540), (20, 775247), (22, 704770), (43, 360580), (44, 352385), (55, 281908), (86, 180290), (110, 140954), (121, 128140), (149, 104060), (172, 90145), (215, 72116), (220, 70477), (242, 64070), (298, 52030), (430, 36058), (473, 32780), (484, 32035), (596, 26015), (605, 25628), (745, 20812), (860, 18029), (946, 16390), (1210, 12814), (1490, 10406), (1639, 9460), (1892, 8195), (2365, 6556), (2420, 6407), (2980, 5203), (3278, 4730)]