20123784

素因数分解:

$2^3\times 3^2\times {\mathrm{17}}^1\times {\mathrm{41}}^1\times {\mathrm{401}}^1$

素因数の和:471

約数の個数: 96

約数和(自身を含む): 59262840

約数和(自身を除く): 39139056

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 17, 18, 24, 34, 36, 41, 51, 68, 72, 82, 102, 123, 136, 153, 164, 204, 246, 306, 328, 369, 401, 408, 492, 612, 697, 738, 802, 984, 1203, 1224, 1394, 1476, 1604, 2091, 2406, 2788, 2952, 3208, 3609, 4182, 4812, 5576, 6273, 6817, 7218, 8364, 9624, 12546, 13634, 14436, 16441, 16728, 20451, 25092, 27268, 28872, 32882, 40902, 49323, 50184, 54536, 61353, 65764, 81804, 98646, 122706, 131528, 147969, 163608, 197292, 245412, 279497, 295938, 394584, 490824, 558994, 591876, 838491, 1117988, 1183752, 1676982, 2235976, 2515473, 3353964, 5030946, 6707928, 10061892, 20123784]

約数ペア:

[(1, 20123784), (2, 10061892), (3, 6707928), (4, 5030946), (6, 3353964), (8, 2515473), (9, 2235976), (12, 1676982), (17, 1183752), (18, 1117988), (24, 838491), (34, 591876), (36, 558994), (41, 490824), (51, 394584), (68, 295938), (72, 279497), (82, 245412), (102, 197292), (123, 163608), (136, 147969), (153, 131528), (164, 122706), (204, 98646), (246, 81804), (306, 65764), (328, 61353), (369, 54536), (401, 50184), (408, 49323), (492, 40902), (612, 32882), (697, 28872), (738, 27268), (802, 25092), (984, 20451), (1203, 16728), (1224, 16441), (1394, 14436), (1476, 13634), (1604, 12546), (2091, 9624), (2406, 8364), (2788, 7218), (2952, 6817), (3208, 6273), (3609, 5576), (4182, 4812)]