78843940

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{43}}^1\times {\mathrm{1871}}^1$

素因数の和:1937

約数の個数: 72

約数和(自身を含む): 197188992

約数和(自身を除く): 118345052

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 43, 49, 70, 86, 98, 140, 172, 196, 215, 245, 301, 430, 490, 602, 860, 980, 1204, 1505, 1871, 2107, 3010, 3742, 4214, 6020, 7484, 8428, 9355, 10535, 13097, 18710, 21070, 26194, 37420, 42140, 52388, 65485, 80453, 91679, 130970, 160906, 183358, 261940, 321812, 366716, 402265, 458395, 563171, 804530, 916790, 1126342, 1609060, 1833580, 2252684, 2815855, 3942197, 5631710, 7884394, 11263420, 15768788, 19710985, 39421970, 78843940]

約数ペア:

[(1, 78843940), (2, 39421970), (4, 19710985), (5, 15768788), (7, 11263420), (10, 7884394), (14, 5631710), (20, 3942197), (28, 2815855), (35, 2252684), (43, 1833580), (49, 1609060), (70, 1126342), (86, 916790), (98, 804530), (140, 563171), (172, 458395), (196, 402265), (215, 366716), (245, 321812), (301, 261940), (430, 183358), (490, 160906), (602, 130970), (860, 91679), (980, 80453), (1204, 65485), (1505, 52388), (1871, 42140), (2107, 37420), (3010, 26194), (3742, 21070), (4214, 18710), (6020, 13097), (7484, 10535), (8428, 9355)]