20874360

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{13381}}^1$

素因数の和:13408

約数の個数: 64

約数和(自身を含む): 67445280

約数和(自身を除く): 46570920

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 20, 24, 26, 30, 39, 40, 52, 60, 65, 78, 104, 120, 130, 156, 195, 260, 312, 390, 520, 780, 1560, 13381, 26762, 40143, 53524, 66905, 80286, 107048, 133810, 160572, 173953, 200715, 267620, 321144, 347906, 401430, 521859, 535240, 695812, 802860, 869765, 1043718, 1391624, 1605720, 1739530, 2087436, 2609295, 3479060, 4174872, 5218590, 6958120, 10437180, 20874360]

約数ペア:

[(1, 20874360), (2, 10437180), (3, 6958120), (4, 5218590), (5, 4174872), (6, 3479060), (8, 2609295), (10, 2087436), (12, 1739530), (13, 1605720), (15, 1391624), (20, 1043718), (24, 869765), (26, 802860), (30, 695812), (39, 535240), (40, 521859), (52, 401430), (60, 347906), (65, 321144), (78, 267620), (104, 200715), (120, 173953), (130, 160572), (156, 133810), (195, 107048), (260, 80286), (312, 66905), (390, 53524), (520, 40143), (780, 26762), (1560, 13381)]