858666820

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^2\times {\mathrm{23}}^1\times {\mathrm{15427}}^1$

素因数の和:15481

約数の個数: 72

約数和(自身を含む): 2068339392

約数和(自身を除く): 1209672572

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 23, 44, 46, 55, 92, 110, 115, 121, 220, 230, 242, 253, 460, 484, 506, 605, 1012, 1210, 1265, 2420, 2530, 2783, 5060, 5566, 11132, 13915, 15427, 27830, 30854, 55660, 61708, 77135, 154270, 169697, 308540, 339394, 354821, 678788, 709642, 848485, 1419284, 1696970, 1774105, 1866667, 3393940, 3548210, 3733334, 3903031, 7096420, 7466668, 7806062, 9333335, 15612124, 18666670, 19515155, 37333340, 39030310, 42933341, 78060620, 85866682, 171733364, 214666705, 429333410, 858666820]

約数ペア:

[(1, 858666820), (2, 429333410), (4, 214666705), (5, 171733364), (10, 85866682), (11, 78060620), (20, 42933341), (22, 39030310), (23, 37333340), (44, 19515155), (46, 18666670), (55, 15612124), (92, 9333335), (110, 7806062), (115, 7466668), (121, 7096420), (220, 3903031), (230, 3733334), (242, 3548210), (253, 3393940), (460, 1866667), (484, 1774105), (506, 1696970), (605, 1419284), (1012, 848485), (1210, 709642), (1265, 678788), (2420, 354821), (2530, 339394), (2783, 308540), (5060, 169697), (5566, 154270), (11132, 77135), (13915, 61708), (15427, 55660), (27830, 30854)]