18835160

素因数分解:

$2^3\times 5^1\times {\mathrm{23}}^1\times {\mathrm{59}}^1\times {\mathrm{347}}^1$

素因数の和:440

約数の個数: 64

約数和(自身を含む): 45100800

約数和(自身を除く): 26265640

約数列:

[1, 2, 4, 5, 8, 10, 20, 23, 40, 46, 59, 92, 115, 118, 184, 230, 236, 295, 347, 460, 472, 590, 694, 920, 1180, 1357, 1388, 1735, 2360, 2714, 2776, 3470, 5428, 6785, 6940, 7981, 10856, 13570, 13880, 15962, 20473, 27140, 31924, 39905, 40946, 54280, 63848, 79810, 81892, 102365, 159620, 163784, 204730, 319240, 409460, 470879, 818920, 941758, 1883516, 2354395, 3767032, 4708790, 9417580, 18835160]

約数ペア:

[(1, 18835160), (2, 9417580), (4, 4708790), (5, 3767032), (8, 2354395), (10, 1883516), (20, 941758), (23, 818920), (40, 470879), (46, 409460), (59, 319240), (92, 204730), (115, 163784), (118, 159620), (184, 102365), (230, 81892), (236, 79810), (295, 63848), (347, 54280), (460, 40946), (472, 39905), (590, 31924), (694, 27140), (920, 20473), (1180, 15962), (1357, 13880), (1388, 13570), (1735, 10856), (2360, 7981), (2714, 6940), (2776, 6785), (3470, 5428)]