21462320

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{29}}^3$

素因数の和:111

約数の個数: 80

約数和(自身を含む): 56380320

約数和(自身を除く): 34918000

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 29, 40, 44, 55, 58, 80, 88, 110, 116, 145, 176, 220, 232, 290, 319, 440, 464, 580, 638, 841, 880, 1160, 1276, 1595, 1682, 2320, 2552, 3190, 3364, 4205, 5104, 6380, 6728, 8410, 9251, 12760, 13456, 16820, 18502, 24389, 25520, 33640, 37004, 46255, 48778, 67280, 74008, 92510, 97556, 121945, 148016, 185020, 195112, 243890, 268279, 370040, 390224, 487780, 536558, 740080, 975560, 1073116, 1341395, 1951120, 2146232, 2682790, 4292464, 5365580, 10731160, 21462320]

約数ペア:

[(1, 21462320), (2, 10731160), (4, 5365580), (5, 4292464), (8, 2682790), (10, 2146232), (11, 1951120), (16, 1341395), (20, 1073116), (22, 975560), (29, 740080), (40, 536558), (44, 487780), (55, 390224), (58, 370040), (80, 268279), (88, 243890), (110, 195112), (116, 185020), (145, 148016), (176, 121945), (220, 97556), (232, 92510), (290, 74008), (319, 67280), (440, 48778), (464, 46255), (580, 37004), (638, 33640), (841, 25520), (880, 24389), (1160, 18502), (1276, 16820), (1595, 13456), (1682, 12760), (2320, 9251), (2552, 8410), (3190, 6728), (3364, 6380), (4205, 5104)]