25278640

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{10193}}^1$

素因数の和:10237

約数の個数: 40

約数和(自身を含む): 60674688

約数和(自身を除く): 35396048

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 40, 62, 80, 124, 155, 248, 310, 496, 620, 1240, 2480, 10193, 20386, 40772, 50965, 81544, 101930, 163088, 203860, 315983, 407720, 631966, 815440, 1263932, 1579915, 2527864, 3159830, 5055728, 6319660, 12639320, 25278640]

約数ペア:

[(1, 25278640), (2, 12639320), (4, 6319660), (5, 5055728), (8, 3159830), (10, 2527864), (16, 1579915), (20, 1263932), (31, 815440), (40, 631966), (62, 407720), (80, 315983), (124, 203860), (155, 163088), (248, 101930), (310, 81544), (496, 50965), (620, 40772), (1240, 20386), (2480, 10193)]