1561245980

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{71}}^1\times {\mathrm{6829}}^1$

素因数の和:6939

約数の個数: 96

約数和(自身を含む): 3965552640

約数和(自身を除く): 2404306660

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 23, 28, 35, 46, 70, 71, 92, 115, 140, 142, 161, 230, 284, 322, 355, 460, 497, 644, 710, 805, 994, 1420, 1610, 1633, 1988, 2485, 3220, 3266, 4970, 6532, 6829, 8165, 9940, 11431, 13658, 16330, 22862, 27316, 32660, 34145, 45724, 47803, 57155, 68290, 95606, 114310, 136580, 157067, 191212, 228620, 239015, 314134, 478030, 484859, 628268, 785335, 956060, 969718, 1099469, 1570670, 1939436, 2198938, 2424295, 3141340, 3394013, 4397876, 4848590, 5497345, 6788026, 9697180, 10994690, 11151757, 13576052, 16970065, 21989380, 22303514, 33940130, 44607028, 55758785, 67880260, 78062299, 111517570, 156124598, 223035140, 312249196, 390311495, 780622990, 1561245980]

約数ペア:

[(1, 1561245980), (2, 780622990), (4, 390311495), (5, 312249196), (7, 223035140), (10, 156124598), (14, 111517570), (20, 78062299), (23, 67880260), (28, 55758785), (35, 44607028), (46, 33940130), (70, 22303514), (71, 21989380), (92, 16970065), (115, 13576052), (140, 11151757), (142, 10994690), (161, 9697180), (230, 6788026), (284, 5497345), (322, 4848590), (355, 4397876), (460, 3394013), (497, 3141340), (644, 2424295), (710, 2198938), (805, 1939436), (994, 1570670), (1420, 1099469), (1610, 969718), (1633, 956060), (1988, 785335), (2485, 628268), (3220, 484859), (3266, 478030), (4970, 314134), (6532, 239015), (6829, 228620), (8165, 191212), (9940, 157067), (11431, 136580), (13658, 114310), (16330, 95606), (22862, 68290), (27316, 57155), (32660, 47803), (34145, 45724)]