431387425

素因数分解:

$5^2\times 7^2\times {\mathrm{23}}^1\times {\mathrm{61}}^1\times {\mathrm{251}}^1$

素因数の和:359

約数の個数: 72

約数和(自身を含む): 662582592

約数和(自身を除く): 231195167

約数列:

[1, 5, 7, 23, 25, 35, 49, 61, 115, 161, 175, 245, 251, 305, 427, 575, 805, 1127, 1225, 1255, 1403, 1525, 1757, 2135, 2989, 4025, 5635, 5773, 6275, 7015, 8785, 9821, 10675, 12299, 14945, 15311, 28175, 28865, 35075, 40411, 43925, 49105, 61495, 68747, 74725, 76555, 107177, 144325, 202055, 245525, 282877, 307475, 343735, 352153, 382775, 535885, 750239, 1010275, 1414385, 1718675, 1760765, 2465071, 2679425, 3751195, 7071925, 8803825, 12325355, 17255497, 18755975, 61626775, 86277485, 431387425]

約数ペア:

[(1, 431387425), (5, 86277485), (7, 61626775), (23, 18755975), (25, 17255497), (35, 12325355), (49, 8803825), (61, 7071925), (115, 3751195), (161, 2679425), (175, 2465071), (245, 1760765), (251, 1718675), (305, 1414385), (427, 1010275), (575, 750239), (805, 535885), (1127, 382775), (1225, 352153), (1255, 343735), (1403, 307475), (1525, 282877), (1757, 245525), (2135, 202055), (2989, 144325), (4025, 107177), (5635, 76555), (5773, 74725), (6275, 68747), (7015, 61495), (8785, 49105), (9821, 43925), (10675, 40411), (12299, 35075), (14945, 28865), (15311, 28175)]