56431340

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{89}}^1\times {\mathrm{647}}^1$

素因数の和:759

約数の個数: 72

約数和(自身を含む): 139618080

約数和(自身を除く): 83186740

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 89, 98, 140, 178, 196, 245, 356, 445, 490, 623, 647, 890, 980, 1246, 1294, 1780, 2492, 2588, 3115, 3235, 4361, 4529, 6230, 6470, 8722, 9058, 12460, 12940, 17444, 18116, 21805, 22645, 31703, 43610, 45290, 57583, 63406, 87220, 90580, 115166, 126812, 158515, 230332, 287915, 317030, 403081, 575830, 634060, 806162, 1151660, 1612324, 2015405, 2821567, 4030810, 5643134, 8061620, 11286268, 14107835, 28215670, 56431340]

約数ペア:

[(1, 56431340), (2, 28215670), (4, 14107835), (5, 11286268), (7, 8061620), (10, 5643134), (14, 4030810), (20, 2821567), (28, 2015405), (35, 1612324), (49, 1151660), (70, 806162), (89, 634060), (98, 575830), (140, 403081), (178, 317030), (196, 287915), (245, 230332), (356, 158515), (445, 126812), (490, 115166), (623, 90580), (647, 87220), (890, 63406), (980, 57583), (1246, 45290), (1294, 43610), (1780, 31703), (2492, 22645), (2588, 21805), (3115, 18116), (3235, 17444), (4361, 12940), (4529, 12460), (6230, 9058), (6470, 8722)]