16221920

素因数分解:

$2^5\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{709}}^1$

素因数の和:748

約数の個数: 96

約数和(自身を含む): 45087840

約数和(自身を除く): 28865920

約数列:

[1, 2, 4, 5, 8, 10, 11, 13, 16, 20, 22, 26, 32, 40, 44, 52, 55, 65, 80, 88, 104, 110, 130, 143, 160, 176, 208, 220, 260, 286, 352, 416, 440, 520, 572, 709, 715, 880, 1040, 1144, 1418, 1430, 1760, 2080, 2288, 2836, 2860, 3545, 4576, 5672, 5720, 7090, 7799, 9217, 11344, 11440, 14180, 15598, 18434, 22688, 22880, 28360, 31196, 36868, 38995, 46085, 56720, 62392, 73736, 77990, 92170, 101387, 113440, 124784, 147472, 155980, 184340, 202774, 249568, 294944, 311960, 368680, 405548, 506935, 623920, 737360, 811096, 1013870, 1247840, 1474720, 1622192, 2027740, 3244384, 4055480, 8110960, 16221920]

約数ペア:

[(1, 16221920), (2, 8110960), (4, 4055480), (5, 3244384), (8, 2027740), (10, 1622192), (11, 1474720), (13, 1247840), (16, 1013870), (20, 811096), (22, 737360), (26, 623920), (32, 506935), (40, 405548), (44, 368680), (52, 311960), (55, 294944), (65, 249568), (80, 202774), (88, 184340), (104, 155980), (110, 147472), (130, 124784), (143, 113440), (160, 101387), (176, 92170), (208, 77990), (220, 73736), (260, 62392), (286, 56720), (352, 46085), (416, 38995), (440, 36868), (520, 31196), (572, 28360), (709, 22880), (715, 22688), (880, 18434), (1040, 15598), (1144, 14180), (1418, 11440), (1430, 11344), (1760, 9217), (2080, 7799), (2288, 7090), (2836, 5720), (2860, 5672), (3545, 4576)]