31163220

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{15739}}^1$

素因数の和:15765

約数の個数: 72

約数和(自身を含む): 103128480

約数和(自身を除く): 71965260

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 11, 12, 15, 18, 20, 22, 30, 33, 36, 44, 45, 55, 60, 66, 90, 99, 110, 132, 165, 180, 198, 220, 330, 396, 495, 660, 990, 1980, 15739, 31478, 47217, 62956, 78695, 94434, 141651, 157390, 173129, 188868, 236085, 283302, 314780, 346258, 472170, 519387, 566604, 692516, 708255, 865645, 944340, 1038774, 1416510, 1558161, 1731290, 2077548, 2596935, 2833020, 3116322, 3462580, 5193870, 6232644, 7790805, 10387740, 15581610, 31163220]

約数ペア:

[(1, 31163220), (2, 15581610), (3, 10387740), (4, 7790805), (5, 6232644), (6, 5193870), (9, 3462580), (10, 3116322), (11, 2833020), (12, 2596935), (15, 2077548), (18, 1731290), (20, 1558161), (22, 1416510), (30, 1038774), (33, 944340), (36, 865645), (44, 708255), (45, 692516), (55, 566604), (60, 519387), (66, 472170), (90, 346258), (99, 314780), (110, 283302), (132, 236085), (165, 188868), (180, 173129), (198, 157390), (220, 141651), (330, 94434), (396, 78695), (495, 62956), (660, 47217), (990, 31478), (1980, 15739)]