280827140

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{41177}}^1$

素因数の和:41228

約数の個数: 48

約数和(自身を含む): 664118784

約数和(自身を除く): 383291644

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 31, 44, 55, 62, 110, 124, 155, 220, 310, 341, 620, 682, 1364, 1705, 3410, 6820, 41177, 82354, 164708, 205885, 411770, 452947, 823540, 905894, 1276487, 1811788, 2264735, 2552974, 4529470, 5105948, 6382435, 9058940, 12764870, 14041357, 25529740, 28082714, 56165428, 70206785, 140413570, 280827140]

約数ペア:

[(1, 280827140), (2, 140413570), (4, 70206785), (5, 56165428), (10, 28082714), (11, 25529740), (20, 14041357), (22, 12764870), (31, 9058940), (44, 6382435), (55, 5105948), (62, 4529470), (110, 2552974), (124, 2264735), (155, 1811788), (220, 1276487), (310, 905894), (341, 823540), (620, 452947), (682, 411770), (1364, 205885), (1705, 164708), (3410, 82354), (6820, 41177)]