28088080

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{1087}}^1$

素因数の和:1136

約数の個数: 80

約数和(自身を含む): 72852480

約数和(自身を除く): 44764400

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 19, 20, 34, 38, 40, 68, 76, 80, 85, 95, 136, 152, 170, 190, 272, 304, 323, 340, 380, 646, 680, 760, 1087, 1292, 1360, 1520, 1615, 2174, 2584, 3230, 4348, 5168, 5435, 6460, 8696, 10870, 12920, 17392, 18479, 20653, 21740, 25840, 36958, 41306, 43480, 73916, 82612, 86960, 92395, 103265, 147832, 165224, 184790, 206530, 295664, 330448, 351101, 369580, 413060, 702202, 739160, 826120, 1404404, 1478320, 1652240, 1755505, 2808808, 3511010, 5617616, 7022020, 14044040, 28088080]

約数ペア:

[(1, 28088080), (2, 14044040), (4, 7022020), (5, 5617616), (8, 3511010), (10, 2808808), (16, 1755505), (17, 1652240), (19, 1478320), (20, 1404404), (34, 826120), (38, 739160), (40, 702202), (68, 413060), (76, 369580), (80, 351101), (85, 330448), (95, 295664), (136, 206530), (152, 184790), (170, 165224), (190, 147832), (272, 103265), (304, 92395), (323, 86960), (340, 82612), (380, 73916), (646, 43480), (680, 41306), (760, 36958), (1087, 25840), (1292, 21740), (1360, 20653), (1520, 18479), (1615, 17392), (2174, 12920), (2584, 10870), (3230, 8696), (4348, 6460), (5168, 5435)]