20135856

素因数分解:

$2^4\times 3^1\times {\mathrm{13}}^1\times {\mathrm{23}}^2\times {\mathrm{61}}^1$

素因数の和:131

約数の個数: 120

約数和(自身を含む): 59520496

約数和(自身を除く): 39384640

約数列:

[1, 2, 3, 4, 6, 8, 12, 13, 16, 23, 24, 26, 39, 46, 48, 52, 61, 69, 78, 92, 104, 122, 138, 156, 183, 184, 208, 244, 276, 299, 312, 366, 368, 488, 529, 552, 598, 624, 732, 793, 897, 976, 1058, 1104, 1196, 1403, 1464, 1586, 1587, 1794, 2116, 2379, 2392, 2806, 2928, 3172, 3174, 3588, 4209, 4232, 4758, 4784, 5612, 6344, 6348, 6877, 7176, 8418, 8464, 9516, 11224, 12688, 12696, 13754, 14352, 16836, 18239, 19032, 20631, 22448, 25392, 27508, 32269, 33672, 36478, 38064, 41262, 54717, 55016, 64538, 67344, 72956, 82524, 96807, 109434, 110032, 129076, 145912, 165048, 193614, 218868, 258152, 291824, 330096, 387228, 419497, 437736, 516304, 774456, 838994, 875472, 1258491, 1548912, 1677988, 2516982, 3355976, 5033964, 6711952, 10067928, 20135856]

約数ペア:

[(1, 20135856), (2, 10067928), (3, 6711952), (4, 5033964), (6, 3355976), (8, 2516982), (12, 1677988), (13, 1548912), (16, 1258491), (23, 875472), (24, 838994), (26, 774456), (39, 516304), (46, 437736), (48, 419497), (52, 387228), (61, 330096), (69, 291824), (78, 258152), (92, 218868), (104, 193614), (122, 165048), (138, 145912), (156, 129076), (183, 110032), (184, 109434), (208, 96807), (244, 82524), (276, 72956), (299, 67344), (312, 64538), (366, 55016), (368, 54717), (488, 41262), (529, 38064), (552, 36478), (598, 33672), (624, 32269), (732, 27508), (793, 25392), (897, 22448), (976, 20631), (1058, 19032), (1104, 18239), (1196, 16836), (1403, 14352), (1464, 13754), (1586, 12696), (1587, 12688), (1794, 11224), (2116, 9516), (2379, 8464), (2392, 8418), (2806, 7176), (2928, 6877), (3172, 6348), (3174, 6344), (3588, 5612), (4209, 4784), (4232, 4758)]