20895160

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^2\times {\mathrm{281}}^1$

素因数の和:329

約数の個数: 96

約数和(自身を含む): 55734480

約数和(自身を除く): 34839320

約数列:

[1, 2, 4, 5, 8, 10, 11, 13, 20, 22, 26, 40, 44, 52, 55, 65, 88, 104, 110, 130, 143, 169, 220, 260, 281, 286, 338, 440, 520, 562, 572, 676, 715, 845, 1124, 1144, 1352, 1405, 1430, 1690, 1859, 2248, 2810, 2860, 3091, 3380, 3653, 3718, 5620, 5720, 6182, 6760, 7306, 7436, 9295, 11240, 12364, 14612, 14872, 15455, 18265, 18590, 24728, 29224, 30910, 36530, 37180, 40183, 47489, 61820, 73060, 74360, 80366, 94978, 123640, 146120, 160732, 189956, 200915, 237445, 321464, 379912, 401830, 474890, 522379, 803660, 949780, 1044758, 1607320, 1899560, 2089516, 2611895, 4179032, 5223790, 10447580, 20895160]

約数ペア:

[(1, 20895160), (2, 10447580), (4, 5223790), (5, 4179032), (8, 2611895), (10, 2089516), (11, 1899560), (13, 1607320), (20, 1044758), (22, 949780), (26, 803660), (40, 522379), (44, 474890), (52, 401830), (55, 379912), (65, 321464), (88, 237445), (104, 200915), (110, 189956), (130, 160732), (143, 146120), (169, 123640), (220, 94978), (260, 80366), (281, 74360), (286, 73060), (338, 61820), (440, 47489), (520, 40183), (562, 37180), (572, 36530), (676, 30910), (715, 29224), (845, 24728), (1124, 18590), (1144, 18265), (1352, 15455), (1405, 14872), (1430, 14612), (1690, 12364), (1859, 11240), (2248, 9295), (2810, 7436), (2860, 7306), (3091, 6760), (3380, 6182), (3653, 5720), (3718, 5620)]