43457620

素因数分解:

$2^2\times 5^1\times {\mathrm{61}}^1\times {\mathrm{179}}^1\times {\mathrm{199}}^1$

素因数の和:448

約数の個数: 48

約数和(自身を含む): 93744000

約数和(自身を除く): 50286380

約数列:

[1, 2, 4, 5, 10, 20, 61, 122, 179, 199, 244, 305, 358, 398, 610, 716, 796, 895, 995, 1220, 1790, 1990, 3580, 3980, 10919, 12139, 21838, 24278, 35621, 43676, 48556, 54595, 60695, 71242, 109190, 121390, 142484, 178105, 218380, 242780, 356210, 712420, 2172881, 4345762, 8691524, 10864405, 21728810, 43457620]

約数ペア:

[(1, 43457620), (2, 21728810), (4, 10864405), (5, 8691524), (10, 4345762), (20, 2172881), (61, 712420), (122, 356210), (179, 242780), (199, 218380), (244, 178105), (305, 142484), (358, 121390), (398, 109190), (610, 71242), (716, 60695), (796, 54595), (895, 48556), (995, 43676), (1220, 35621), (1790, 24278), (1990, 21838), (3580, 12139), (3980, 10919)]