399402512

素因数分解:

$2^4\times {\mathrm{31}}^1\times {\mathrm{79}}^1\times {\mathrm{10193}}^1$

素因数の和:10311

約数の個数: 40

約数和(自身を含む): 808995840

約数和(自身を除く): 409593328

約数列:

[1, 2, 4, 8, 16, 31, 62, 79, 124, 158, 248, 316, 496, 632, 1264, 2449, 4898, 9796, 10193, 19592, 20386, 39184, 40772, 81544, 163088, 315983, 631966, 805247, 1263932, 1610494, 2527864, 3220988, 5055728, 6441976, 12883952, 24962657, 49925314, 99850628, 199701256, 399402512]

約数ペア:

[(1, 399402512), (2, 199701256), (4, 99850628), (8, 49925314), (16, 24962657), (31, 12883952), (62, 6441976), (79, 5055728), (124, 3220988), (158, 2527864), (248, 1610494), (316, 1263932), (496, 805247), (632, 631966), (1264, 315983), (2449, 163088), (4898, 81544), (9796, 40772), (10193, 39184), (19592, 20386)]