28122080

素因数分解:

$2^5\times 5^1\times 7^2\times {\mathrm{17}}^1\times {\mathrm{211}}^1$

素因数の和:257

約数の個数: 144

約数和(自身を含む): 82219536

約数和(自身を除く): 54097456

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 17, 20, 28, 32, 34, 35, 40, 49, 56, 68, 70, 80, 85, 98, 112, 119, 136, 140, 160, 170, 196, 211, 224, 238, 245, 272, 280, 340, 392, 422, 476, 490, 544, 560, 595, 680, 784, 833, 844, 952, 980, 1055, 1120, 1190, 1360, 1477, 1568, 1666, 1688, 1904, 1960, 2110, 2380, 2720, 2954, 3332, 3376, 3587, 3808, 3920, 4165, 4220, 4760, 5908, 6664, 6752, 7174, 7385, 7840, 8330, 8440, 9520, 10339, 11816, 13328, 14348, 14770, 16660, 16880, 17935, 19040, 20678, 23632, 25109, 26656, 28696, 29540, 33320, 33760, 35870, 41356, 47264, 50218, 51695, 57392, 59080, 66640, 71740, 82712, 100436, 103390, 114784, 118160, 125545, 133280, 143480, 165424, 175763, 200872, 206780, 236320, 251090, 286960, 330848, 351526, 401744, 413560, 502180, 573920, 703052, 803488, 827120, 878815, 1004360, 1406104, 1654240, 1757630, 2008720, 2812208, 3515260, 4017440, 5624416, 7030520, 14061040, 28122080]

約数ペア:

[(1, 28122080), (2, 14061040), (4, 7030520), (5, 5624416), (7, 4017440), (8, 3515260), (10, 2812208), (14, 2008720), (16, 1757630), (17, 1654240), (20, 1406104), (28, 1004360), (32, 878815), (34, 827120), (35, 803488), (40, 703052), (49, 573920), (56, 502180), (68, 413560), (70, 401744), (80, 351526), (85, 330848), (98, 286960), (112, 251090), (119, 236320), (136, 206780), (140, 200872), (160, 175763), (170, 165424), (196, 143480), (211, 133280), (224, 125545), (238, 118160), (245, 114784), (272, 103390), (280, 100436), (340, 82712), (392, 71740), (422, 66640), (476, 59080), (490, 57392), (544, 51695), (560, 50218), (595, 47264), (680, 41356), (784, 35870), (833, 33760), (844, 33320), (952, 29540), (980, 28696), (1055, 26656), (1120, 25109), (1190, 23632), (1360, 20678), (1477, 19040), (1568, 17935), (1666, 16880), (1688, 16660), (1904, 14770), (1960, 14348), (2110, 13328), (2380, 11816), (2720, 10339), (2954, 9520), (3332, 8440), (3376, 8330), (3587, 7840), (3808, 7385), (3920, 7174), (4165, 6752), (4220, 6664), (4760, 5908)]