1318820

素因数分解:

$2^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{47}}^1\times {\mathrm{61}}^1$

素因数の和:140

約数の個数: 48

約数和(自身を含む): 2999808

約数和(自身を除く): 1680988

約数列:

[1, 2, 4, 5, 10, 20, 23, 46, 47, 61, 92, 94, 115, 122, 188, 230, 235, 244, 305, 460, 470, 610, 940, 1081, 1220, 1403, 2162, 2806, 2867, 4324, 5405, 5612, 5734, 7015, 10810, 11468, 14030, 14335, 21620, 28060, 28670, 57340, 65941, 131882, 263764, 329705, 659410, 1318820]

約数ペア:

[(1, 1318820), (2, 659410), (4, 329705), (5, 263764), (10, 131882), (20, 65941), (23, 57340), (46, 28670), (47, 28060), (61, 21620), (92, 14335), (94, 14030), (115, 11468), (122, 10810), (188, 7015), (230, 5734), (235, 5612), (244, 5405), (305, 4324), (460, 2867), (470, 2806), (610, 2162), (940, 1403), (1081, 1220)]