123399320

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{283}}^1\times {\mathrm{991}}^1$

素因数の和:1296

約数の個数: 64

約数和(自身を含む): 304266240

約数和(自身を除く): 180866920

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 283, 440, 566, 991, 1132, 1415, 1982, 2264, 2830, 3113, 3964, 4955, 5660, 6226, 7928, 9910, 10901, 11320, 12452, 15565, 19820, 21802, 24904, 31130, 39640, 43604, 54505, 62260, 87208, 109010, 124520, 218020, 280453, 436040, 560906, 1121812, 1402265, 2243624, 2804530, 3084983, 5609060, 6169966, 11218120, 12339932, 15424915, 24679864, 30849830, 61699660, 123399320]

約数ペア:

[(1, 123399320), (2, 61699660), (4, 30849830), (5, 24679864), (8, 15424915), (10, 12339932), (11, 11218120), (20, 6169966), (22, 5609060), (40, 3084983), (44, 2804530), (55, 2243624), (88, 1402265), (110, 1121812), (220, 560906), (283, 436040), (440, 280453), (566, 218020), (991, 124520), (1132, 109010), (1415, 87208), (1982, 62260), (2264, 54505), (2830, 43604), (3113, 39640), (3964, 31130), (4955, 24904), (5660, 21802), (6226, 19820), (7928, 15565), (9910, 12452), (10901, 11320)]