15979880

素因数分解:

$2^3\times 5^1\times 7^2\times {\mathrm{31}}^1\times {\mathrm{263}}^1$

素因数の和:319

約数の個数: 96

約数和(自身を含む): 43338240

約数和(自身を除く): 27358360

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 31, 35, 40, 49, 56, 62, 70, 98, 124, 140, 155, 196, 217, 245, 248, 263, 280, 310, 392, 434, 490, 526, 620, 868, 980, 1052, 1085, 1240, 1315, 1519, 1736, 1841, 1960, 2104, 2170, 2630, 3038, 3682, 4340, 5260, 6076, 7364, 7595, 8153, 8680, 9205, 10520, 12152, 12887, 14728, 15190, 16306, 18410, 25774, 30380, 32612, 36820, 40765, 51548, 57071, 60760, 64435, 65224, 73640, 81530, 103096, 114142, 128870, 163060, 228284, 257740, 285355, 326120, 399497, 456568, 515480, 570710, 798994, 1141420, 1597988, 1997485, 2282840, 3195976, 3994970, 7989940, 15979880]

約数ペア:

[(1, 15979880), (2, 7989940), (4, 3994970), (5, 3195976), (7, 2282840), (8, 1997485), (10, 1597988), (14, 1141420), (20, 798994), (28, 570710), (31, 515480), (35, 456568), (40, 399497), (49, 326120), (56, 285355), (62, 257740), (70, 228284), (98, 163060), (124, 128870), (140, 114142), (155, 103096), (196, 81530), (217, 73640), (245, 65224), (248, 64435), (263, 60760), (280, 57071), (310, 51548), (392, 40765), (434, 36820), (490, 32612), (526, 30380), (620, 25774), (868, 18410), (980, 16306), (1052, 15190), (1085, 14728), (1240, 12887), (1315, 12152), (1519, 10520), (1736, 9205), (1841, 8680), (1960, 8153), (2104, 7595), (2170, 7364), (2630, 6076), (3038, 5260), (3682, 4340)]