28798775

素因数分解:

$5^2\times {\mathrm{19}}^2\times {\mathrm{3191}}^1$

素因数の和:3239

約数の個数: 18

約数和(自身を含む): 37700712

約数和(自身を除く): 8901937

約数列:

[1, 5, 19, 25, 95, 361, 475, 1805, 3191, 9025, 15955, 60629, 79775, 303145, 1151951, 1515725, 5759755, 28798775]

約数ペア:

[(1, 28798775), (5, 5759755), (19, 1515725), (25, 1151951), (95, 303145), (361, 79775), (475, 60629), (1805, 15955), (3191, 9025)]