8242780

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{647}}^1$

素因数の和:683

約数の個数: 72

約数和(自身を含む): 21718368

約数和(自身を除く): 13475588

約数列:

[1, 2, 4, 5, 7, 10, 13, 14, 20, 26, 28, 35, 49, 52, 65, 70, 91, 98, 130, 140, 182, 196, 245, 260, 364, 455, 490, 637, 647, 910, 980, 1274, 1294, 1820, 2548, 2588, 3185, 3235, 4529, 6370, 6470, 8411, 9058, 12740, 12940, 16822, 18116, 22645, 31703, 33644, 42055, 45290, 58877, 63406, 84110, 90580, 117754, 126812, 158515, 168220, 235508, 294385, 317030, 412139, 588770, 634060, 824278, 1177540, 1648556, 2060695, 4121390, 8242780]

約数ペア:

[(1, 8242780), (2, 4121390), (4, 2060695), (5, 1648556), (7, 1177540), (10, 824278), (13, 634060), (14, 588770), (20, 412139), (26, 317030), (28, 294385), (35, 235508), (49, 168220), (52, 158515), (65, 126812), (70, 117754), (91, 90580), (98, 84110), (130, 63406), (140, 58877), (182, 45290), (196, 42055), (245, 33644), (260, 31703), (364, 22645), (455, 18116), (490, 16822), (637, 12940), (647, 12740), (910, 9058), (980, 8411), (1274, 6470), (1294, 6370), (1820, 4529), (2548, 3235), (2588, 3185)]