20680680

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{59}}^1\times {\mathrm{127}}^1$

素因数の和:223

約数の個数: 128

約数和(自身を含む): 66355200

約数和(自身を除く): 45674520

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 23, 24, 30, 40, 46, 59, 60, 69, 92, 115, 118, 120, 127, 138, 177, 184, 230, 236, 254, 276, 295, 345, 354, 381, 460, 472, 508, 552, 590, 635, 690, 708, 762, 885, 920, 1016, 1180, 1270, 1357, 1380, 1416, 1524, 1770, 1905, 2360, 2540, 2714, 2760, 2921, 3048, 3540, 3810, 4071, 5080, 5428, 5842, 6785, 7080, 7493, 7620, 8142, 8763, 10856, 11684, 13570, 14605, 14986, 15240, 16284, 17526, 20355, 22479, 23368, 27140, 29210, 29972, 32568, 35052, 37465, 40710, 43815, 44958, 54280, 58420, 59944, 70104, 74930, 81420, 87630, 89916, 112395, 116840, 149860, 162840, 172339, 175260, 179832, 224790, 299720, 344678, 350520, 449580, 517017, 689356, 861695, 899160, 1034034, 1378712, 1723390, 2068068, 2585085, 3446780, 4136136, 5170170, 6893560, 10340340, 20680680]

約数ペア:

[(1, 20680680), (2, 10340340), (3, 6893560), (4, 5170170), (5, 4136136), (6, 3446780), (8, 2585085), (10, 2068068), (12, 1723390), (15, 1378712), (20, 1034034), (23, 899160), (24, 861695), (30, 689356), (40, 517017), (46, 449580), (59, 350520), (60, 344678), (69, 299720), (92, 224790), (115, 179832), (118, 175260), (120, 172339), (127, 162840), (138, 149860), (177, 116840), (184, 112395), (230, 89916), (236, 87630), (254, 81420), (276, 74930), (295, 70104), (345, 59944), (354, 58420), (381, 54280), (460, 44958), (472, 43815), (508, 40710), (552, 37465), (590, 35052), (635, 32568), (690, 29972), (708, 29210), (762, 27140), (885, 23368), (920, 22479), (1016, 20355), (1180, 17526), (1270, 16284), (1357, 15240), (1380, 14986), (1416, 14605), (1524, 13570), (1770, 11684), (1905, 10856), (2360, 8763), (2540, 8142), (2714, 7620), (2760, 7493), (2921, 7080), (3048, 6785), (3540, 5842), (3810, 5428), (4071, 5080)]