20854560

素因数分解:

$2^5\times 3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{1889}}^1$

素因数の和:1930

約数の個数: 96

約数和(自身を含む): 68584320

約数和(自身を除く): 47729760

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 23, 24, 30, 32, 40, 46, 48, 60, 69, 80, 92, 96, 115, 120, 138, 160, 184, 230, 240, 276, 345, 368, 460, 480, 552, 690, 736, 920, 1104, 1380, 1840, 1889, 2208, 2760, 3680, 3778, 5520, 5667, 7556, 9445, 11040, 11334, 15112, 18890, 22668, 28335, 30224, 37780, 43447, 45336, 56670, 60448, 75560, 86894, 90672, 113340, 130341, 151120, 173788, 181344, 217235, 226680, 260682, 302240, 347576, 434470, 453360, 521364, 651705, 695152, 868940, 906720, 1042728, 1303410, 1390304, 1737880, 2085456, 2606820, 3475760, 4170912, 5213640, 6951520, 10427280, 20854560]

約数ペア:

[(1, 20854560), (2, 10427280), (3, 6951520), (4, 5213640), (5, 4170912), (6, 3475760), (8, 2606820), (10, 2085456), (12, 1737880), (15, 1390304), (16, 1303410), (20, 1042728), (23, 906720), (24, 868940), (30, 695152), (32, 651705), (40, 521364), (46, 453360), (48, 434470), (60, 347576), (69, 302240), (80, 260682), (92, 226680), (96, 217235), (115, 181344), (120, 173788), (138, 151120), (160, 130341), (184, 113340), (230, 90672), (240, 86894), (276, 75560), (345, 60448), (368, 56670), (460, 45336), (480, 43447), (552, 37780), (690, 30224), (736, 28335), (920, 22668), (1104, 18890), (1380, 15112), (1840, 11334), (1889, 11040), (2208, 9445), (2760, 7556), (3680, 5667), (3778, 5520)]