398476

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{79}}^1\times {\mathrm{97}}^1$

素因数の和:193

約数の個数: 24

約数和(自身を含む): 768320

約数和(自身を除く): 369844

約数列:

[1, 2, 4, 13, 26, 52, 79, 97, 158, 194, 316, 388, 1027, 1261, 2054, 2522, 4108, 5044, 7663, 15326, 30652, 99619, 199238, 398476]

約数ペア:

[(1, 398476), (2, 199238), (4, 99619), (13, 30652), (26, 15326), (52, 7663), (79, 5044), (97, 4108), (158, 2522), (194, 2054), (316, 1261), (388, 1027)]