138907825

素因数分解:

$5^2\times 7^1\times {\mathrm{29}}^1\times {\mathrm{101}}^1\times {\mathrm{271}}^1$

素因数の和:418

約数の個数: 48

約数和(自身を含む): 206415360

約数和(自身を除く): 67507535

約数列:

[1, 5, 7, 25, 29, 35, 101, 145, 175, 203, 271, 505, 707, 725, 1015, 1355, 1897, 2525, 2929, 3535, 5075, 6775, 7859, 9485, 14645, 17675, 20503, 27371, 39295, 47425, 55013, 73225, 102515, 136855, 191597, 196475, 275065, 512575, 684275, 793759, 957985, 1375325, 3968795, 4789925, 5556313, 19843975, 27781565, 138907825]

約数ペア:

[(1, 138907825), (5, 27781565), (7, 19843975), (25, 5556313), (29, 4789925), (35, 3968795), (101, 1375325), (145, 957985), (175, 793759), (203, 684275), (271, 512575), (505, 275065), (707, 196475), (725, 191597), (1015, 136855), (1355, 102515), (1897, 73225), (2525, 55013), (2929, 47425), (3535, 39295), (5075, 27371), (6775, 20503), (7859, 17675), (9485, 14645)]