981398470

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{97}}^1\times {\mathrm{223}}^1\times {\mathrm{349}}^1$

素因数の和:689

約数の個数: 64

約数和(自身を含む): 1936166400

約数和(自身を除く): 954767930

約数列:

[1, 2, 5, 10, 13, 26, 65, 97, 130, 194, 223, 349, 446, 485, 698, 970, 1115, 1261, 1745, 2230, 2522, 2899, 3490, 4537, 5798, 6305, 9074, 12610, 14495, 21631, 22685, 28990, 33853, 43262, 45370, 67706, 77827, 108155, 155654, 169265, 216310, 281203, 338530, 389135, 440089, 562406, 778270, 880178, 1011751, 1406015, 2023502, 2200445, 2812030, 4400890, 5058755, 7549219, 10117510, 15098438, 37746095, 75492190, 98139847, 196279694, 490699235, 981398470]

約数ペア:

[(1, 981398470), (2, 490699235), (5, 196279694), (10, 98139847), (13, 75492190), (26, 37746095), (65, 15098438), (97, 10117510), (130, 7549219), (194, 5058755), (223, 4400890), (349, 2812030), (446, 2200445), (485, 2023502), (698, 1406015), (970, 1011751), (1115, 880178), (1261, 778270), (1745, 562406), (2230, 440089), (2522, 389135), (2899, 338530), (3490, 281203), (4537, 216310), (5798, 169265), (6305, 155654), (9074, 108155), (12610, 77827), (14495, 67706), (21631, 45370), (22685, 43262), (28990, 33853)]