21759520

素因数分解:

$2^5\times 5^1\times {\mathrm{31}}^1\times {\mathrm{41}}^1\times {\mathrm{107}}^1$

素因数の和:194

約数の個数: 96

約数和(自身を含む): 54867456

約数和(自身を除く): 33107936

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 41, 62, 80, 82, 107, 124, 155, 160, 164, 205, 214, 248, 310, 328, 410, 428, 496, 535, 620, 656, 820, 856, 992, 1070, 1240, 1271, 1312, 1640, 1712, 2140, 2480, 2542, 3280, 3317, 3424, 4280, 4387, 4960, 5084, 6355, 6560, 6634, 8560, 8774, 10168, 12710, 13268, 16585, 17120, 17548, 20336, 21935, 25420, 26536, 33170, 35096, 40672, 43870, 50840, 53072, 66340, 70192, 87740, 101680, 106144, 132680, 135997, 140384, 175480, 203360, 265360, 271994, 350960, 530720, 543988, 679985, 701920, 1087976, 1359970, 2175952, 2719940, 4351904, 5439880, 10879760, 21759520]

約数ペア:

[(1, 21759520), (2, 10879760), (4, 5439880), (5, 4351904), (8, 2719940), (10, 2175952), (16, 1359970), (20, 1087976), (31, 701920), (32, 679985), (40, 543988), (41, 530720), (62, 350960), (80, 271994), (82, 265360), (107, 203360), (124, 175480), (155, 140384), (160, 135997), (164, 132680), (205, 106144), (214, 101680), (248, 87740), (310, 70192), (328, 66340), (410, 53072), (428, 50840), (496, 43870), (535, 40672), (620, 35096), (656, 33170), (820, 26536), (856, 25420), (992, 21935), (1070, 20336), (1240, 17548), (1271, 17120), (1312, 16585), (1640, 13268), (1712, 12710), (2140, 10168), (2480, 8774), (2542, 8560), (3280, 6634), (3317, 6560), (3424, 6355), (4280, 5084), (4387, 4960)]