31353520

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^2\times {\mathrm{41}}^1\times {\mathrm{79}}^1$

素因数の和:155

約数の個数: 120

約数和(自身を含む): 83119680

約数和(自身を除く): 51766160

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 41, 44, 55, 79, 80, 82, 88, 110, 121, 158, 164, 176, 205, 220, 242, 316, 328, 395, 410, 440, 451, 484, 605, 632, 656, 790, 820, 869, 880, 902, 968, 1210, 1264, 1580, 1640, 1738, 1804, 1936, 2255, 2420, 3160, 3239, 3280, 3476, 3608, 4345, 4510, 4840, 4961, 6320, 6478, 6952, 7216, 8690, 9020, 9559, 9680, 9922, 12956, 13904, 16195, 17380, 18040, 19118, 19844, 24805, 25912, 32390, 34760, 35629, 36080, 38236, 39688, 47795, 49610, 51824, 64780, 69520, 71258, 76472, 79376, 95590, 99220, 129560, 142516, 152944, 178145, 191180, 198440, 259120, 285032, 356290, 382360, 391919, 396880, 570064, 712580, 764720, 783838, 1425160, 1567676, 1959595, 2850320, 3135352, 3919190, 6270704, 7838380, 15676760, 31353520]

約数ペア:

[(1, 31353520), (2, 15676760), (4, 7838380), (5, 6270704), (8, 3919190), (10, 3135352), (11, 2850320), (16, 1959595), (20, 1567676), (22, 1425160), (40, 783838), (41, 764720), (44, 712580), (55, 570064), (79, 396880), (80, 391919), (82, 382360), (88, 356290), (110, 285032), (121, 259120), (158, 198440), (164, 191180), (176, 178145), (205, 152944), (220, 142516), (242, 129560), (316, 99220), (328, 95590), (395, 79376), (410, 76472), (440, 71258), (451, 69520), (484, 64780), (605, 51824), (632, 49610), (656, 47795), (790, 39688), (820, 38236), (869, 36080), (880, 35629), (902, 34760), (968, 32390), (1210, 25912), (1264, 24805), (1580, 19844), (1640, 19118), (1738, 18040), (1804, 17380), (1936, 16195), (2255, 13904), (2420, 12956), (3160, 9922), (3239, 9680), (3280, 9559), (3476, 9020), (3608, 8690), (4345, 7216), (4510, 6952), (4840, 6478), (4961, 6320)]