20123640

素因数分解:

$2^3\times 3^4\times 5^1\times {\mathrm{6211}}^1$

素因数の和:6234

約数の個数: 80

約数和(自身を含む): 67648680

約数和(自身を除く): 47525040

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 27, 30, 36, 40, 45, 54, 60, 72, 81, 90, 108, 120, 135, 162, 180, 216, 270, 324, 360, 405, 540, 648, 810, 1080, 1620, 3240, 6211, 12422, 18633, 24844, 31055, 37266, 49688, 55899, 62110, 74532, 93165, 111798, 124220, 149064, 167697, 186330, 223596, 248440, 279495, 335394, 372660, 447192, 503091, 558990, 670788, 745320, 838485, 1006182, 1117980, 1341576, 1676970, 2012364, 2235960, 2515455, 3353940, 4024728, 5030910, 6707880, 10061820, 20123640]

約数ペア:

[(1, 20123640), (2, 10061820), (3, 6707880), (4, 5030910), (5, 4024728), (6, 3353940), (8, 2515455), (9, 2235960), (10, 2012364), (12, 1676970), (15, 1341576), (18, 1117980), (20, 1006182), (24, 838485), (27, 745320), (30, 670788), (36, 558990), (40, 503091), (45, 447192), (54, 372660), (60, 335394), (72, 279495), (81, 248440), (90, 223596), (108, 186330), (120, 167697), (135, 149064), (162, 124220), (180, 111798), (216, 93165), (270, 74532), (324, 62110), (360, 55899), (405, 49688), (540, 37266), (648, 31055), (810, 24844), (1080, 18633), (1620, 12422), (3240, 6211)]