56878120

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{89}}^1\times {\mathrm{1229}}^1$

素因数の和:1342

約数の個数: 64

約数和(自身を含む): 139482000

約数和(自身を除く): 82603880

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 89, 104, 130, 178, 260, 356, 445, 520, 712, 890, 1157, 1229, 1780, 2314, 2458, 3560, 4628, 4916, 5785, 6145, 9256, 9832, 11570, 12290, 15977, 23140, 24580, 31954, 46280, 49160, 63908, 79885, 109381, 127816, 159770, 218762, 319540, 437524, 546905, 639080, 875048, 1093810, 1421953, 2187620, 2843906, 4375240, 5687812, 7109765, 11375624, 14219530, 28439060, 56878120]

約数ペア:

[(1, 56878120), (2, 28439060), (4, 14219530), (5, 11375624), (8, 7109765), (10, 5687812), (13, 4375240), (20, 2843906), (26, 2187620), (40, 1421953), (52, 1093810), (65, 875048), (89, 639080), (104, 546905), (130, 437524), (178, 319540), (260, 218762), (356, 159770), (445, 127816), (520, 109381), (712, 79885), (890, 63908), (1157, 49160), (1229, 46280), (1780, 31954), (2314, 24580), (2458, 23140), (3560, 15977), (4628, 12290), (4916, 11570), (5785, 9832), (6145, 9256)]