81791390

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{73}}^1\times {\mathrm{5897}}^1$

素因数の和:5996

約数の個数: 32

約数和(自身を含む): 157122720

約数和(自身を除く): 75331330

約数列:

[1, 2, 5, 10, 19, 38, 73, 95, 146, 190, 365, 730, 1387, 2774, 5897, 6935, 11794, 13870, 29485, 58970, 112043, 224086, 430481, 560215, 860962, 1120430, 2152405, 4304810, 8179139, 16358278, 40895695, 81791390]

約数ペア:

[(1, 81791390), (2, 40895695), (5, 16358278), (10, 8179139), (19, 4304810), (38, 2152405), (73, 1120430), (95, 860962), (146, 560215), (190, 430481), (365, 224086), (730, 112043), (1387, 58970), (2774, 29485), (5897, 13870), (6935, 11794)]