18775325

素因数分解:

$5^2\times {\mathrm{19}}^1\times {\mathrm{29}}^2\times {\mathrm{47}}^1$

素因数の和:134

約数の個数: 36

約数和(自身を含む): 25920960

約数和(自身を除く): 7145635

約数列:

[1, 5, 19, 25, 29, 47, 95, 145, 235, 475, 551, 725, 841, 893, 1175, 1363, 2755, 4205, 4465, 6815, 13775, 15979, 21025, 22325, 25897, 34075, 39527, 79895, 129485, 197635, 399475, 647425, 751013, 988175, 3755065, 18775325]

約数ペア:

[(1, 18775325), (5, 3755065), (19, 988175), (25, 751013), (29, 647425), (47, 399475), (95, 197635), (145, 129485), (235, 79895), (475, 39527), (551, 34075), (725, 25897), (841, 22325), (893, 21025), (1175, 15979), (1363, 13775), (2755, 6815), (4205, 4465)]