199900406

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{439}}^1\times {\mathrm{521}}^1$

素因数の和:1004

約数の個数: 32

約数和(自身を含む): 330739200

約数和(自身を除く): 130838794

約数列:

[1, 2, 19, 23, 38, 46, 437, 439, 521, 874, 878, 1042, 8341, 9899, 10097, 11983, 16682, 19798, 20194, 23966, 191843, 227677, 228719, 383686, 455354, 457438, 4345661, 5260537, 8691322, 10521074, 99950203, 199900406]

約数ペア:

[(1, 199900406), (2, 99950203), (19, 10521074), (23, 8691322), (38, 5260537), (46, 4345661), (437, 457438), (439, 455354), (521, 383686), (874, 228719), (878, 227677), (1042, 191843), (8341, 23966), (9899, 20194), (10097, 19798), (11983, 16682)]