28263925

素因数分解:

$5^2\times {\mathrm{19}}^1\times {\mathrm{157}}^1\times {\mathrm{379}}^1$

素因数の和:565

約数の個数: 24

約数和(自身を含む): 37224800

約数和(自身を除く): 8960875

約数列:

[1, 5, 19, 25, 95, 157, 379, 475, 785, 1895, 2983, 3925, 7201, 9475, 14915, 36005, 59503, 74575, 180025, 297515, 1130557, 1487575, 5652785, 28263925]

約数ペア:

[(1, 28263925), (5, 5652785), (19, 1487575), (25, 1130557), (95, 297515), (157, 180025), (379, 74575), (475, 59503), (785, 36005), (1895, 14915), (2983, 9475), (3925, 7201)]