18850525

素因数分解:

$5^2\times {\mathrm{47}}^1\times {\mathrm{61}}^1\times {\mathrm{263}}^1$

素因数の和:381

約数の個数: 24

約数和(自身を含む): 24355584

約数和(自身を除く): 5505059

約数列:

[1, 5, 25, 47, 61, 235, 263, 305, 1175, 1315, 1525, 2867, 6575, 12361, 14335, 16043, 61805, 71675, 80215, 309025, 401075, 754021, 3770105, 18850525]

約数ペア:

[(1, 18850525), (5, 3770105), (25, 754021), (47, 401075), (61, 309025), (235, 80215), (263, 71675), (305, 61805), (1175, 16043), (1315, 14335), (1525, 12361), (2867, 6575)]