21467280

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{3889}}^1$

素因数の和:3928

約数の個数: 80

約数和(自身を含む): 69459840

約数和(自身を除く): 47992560

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 23, 24, 30, 40, 46, 48, 60, 69, 80, 92, 115, 120, 138, 184, 230, 240, 276, 345, 368, 460, 552, 690, 920, 1104, 1380, 1840, 2760, 3889, 5520, 7778, 11667, 15556, 19445, 23334, 31112, 38890, 46668, 58335, 62224, 77780, 89447, 93336, 116670, 155560, 178894, 186672, 233340, 268341, 311120, 357788, 447235, 466680, 536682, 715576, 894470, 933360, 1073364, 1341705, 1431152, 1788940, 2146728, 2683410, 3577880, 4293456, 5366820, 7155760, 10733640, 21467280]

約数ペア:

[(1, 21467280), (2, 10733640), (3, 7155760), (4, 5366820), (5, 4293456), (6, 3577880), (8, 2683410), (10, 2146728), (12, 1788940), (15, 1431152), (16, 1341705), (20, 1073364), (23, 933360), (24, 894470), (30, 715576), (40, 536682), (46, 466680), (48, 447235), (60, 357788), (69, 311120), (80, 268341), (92, 233340), (115, 186672), (120, 178894), (138, 155560), (184, 116670), (230, 93336), (240, 89447), (276, 77780), (345, 62224), (368, 58335), (460, 46668), (552, 38890), (690, 31112), (920, 23334), (1104, 19445), (1380, 15556), (1840, 11667), (2760, 7778), (3889, 5520)]