8405540

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{2939}}^1$

素因数の和:2972

約数の個数: 48

約数和(自身を含む): 20744640

約数和(自身を除く): 12339100

約数列:

[1, 2, 4, 5, 10, 11, 13, 20, 22, 26, 44, 52, 55, 65, 110, 130, 143, 220, 260, 286, 572, 715, 1430, 2860, 2939, 5878, 11756, 14695, 29390, 32329, 38207, 58780, 64658, 76414, 129316, 152828, 161645, 191035, 323290, 382070, 420277, 646580, 764140, 840554, 1681108, 2101385, 4202770, 8405540]

約数ペア:

[(1, 8405540), (2, 4202770), (4, 2101385), (5, 1681108), (10, 840554), (11, 764140), (13, 646580), (20, 420277), (22, 382070), (26, 323290), (44, 191035), (52, 161645), (55, 152828), (65, 129316), (110, 76414), (130, 64658), (143, 58780), (220, 38207), (260, 32329), (286, 29390), (572, 14695), (715, 11756), (1430, 5878), (2860, 2939)]