68268720

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{21881}}^1$

素因数の和:21910

約数の個数: 80

約数和(自身を含む): 227922912

約数和(自身を除く): 159654192

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 16, 20, 24, 26, 30, 39, 40, 48, 52, 60, 65, 78, 80, 104, 120, 130, 156, 195, 208, 240, 260, 312, 390, 520, 624, 780, 1040, 1560, 3120, 21881, 43762, 65643, 87524, 109405, 131286, 175048, 218810, 262572, 284453, 328215, 350096, 437620, 525144, 568906, 656430, 853359, 875240, 1050288, 1137812, 1312860, 1422265, 1706718, 1750480, 2275624, 2625720, 2844530, 3413436, 4266795, 4551248, 5251440, 5689060, 6826872, 8533590, 11378120, 13653744, 17067180, 22756240, 34134360, 68268720]

約数ペア:

[(1, 68268720), (2, 34134360), (3, 22756240), (4, 17067180), (5, 13653744), (6, 11378120), (8, 8533590), (10, 6826872), (12, 5689060), (13, 5251440), (15, 4551248), (16, 4266795), (20, 3413436), (24, 2844530), (26, 2625720), (30, 2275624), (39, 1750480), (40, 1706718), (48, 1422265), (52, 1312860), (60, 1137812), (65, 1050288), (78, 875240), (80, 853359), (104, 656430), (120, 568906), (130, 525144), (156, 437620), (195, 350096), (208, 328215), (240, 284453), (260, 262572), (312, 218810), (390, 175048), (520, 131286), (624, 109405), (780, 87524), (1040, 65643), (1560, 43762), (3120, 21881)]