85287980

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{137}}^1\times {\mathrm{1831}}^1$

素因数の和:1994

約数の個数: 48

約数和(自身を含む): 191128896

約数和(自身を除く): 105840916

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 137, 170, 274, 340, 548, 685, 1370, 1831, 2329, 2740, 3662, 4658, 7324, 9155, 9316, 11645, 18310, 23290, 31127, 36620, 46580, 62254, 124508, 155635, 250847, 311270, 501694, 622540, 1003388, 1254235, 2508470, 4264399, 5016940, 8528798, 17057596, 21321995, 42643990, 85287980]

約数ペア:

[(1, 85287980), (2, 42643990), (4, 21321995), (5, 17057596), (10, 8528798), (17, 5016940), (20, 4264399), (34, 2508470), (68, 1254235), (85, 1003388), (137, 622540), (170, 501694), (274, 311270), (340, 250847), (548, 155635), (685, 124508), (1370, 62254), (1831, 46580), (2329, 36620), (2740, 31127), (3662, 23290), (4658, 18310), (7324, 11645), (9155, 9316)]