25179975

素因数分解:

$3^2\times 5^2\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{227}}^1$

素因数の和:289

約数の個数: 72

約数和(自身を含む): 49617360

約数和(自身を除く): 24437385

約数列:

[1, 3, 5, 9, 15, 17, 25, 29, 45, 51, 75, 85, 87, 145, 153, 225, 227, 255, 261, 425, 435, 493, 681, 725, 765, 1135, 1275, 1305, 1479, 2043, 2175, 2465, 3405, 3825, 3859, 4437, 5675, 6525, 6583, 7395, 10215, 11577, 12325, 17025, 19295, 19749, 22185, 32915, 34731, 36975, 51075, 57885, 59247, 96475, 98745, 110925, 111911, 164575, 173655, 289425, 296235, 335733, 493725, 559555, 868275, 1007199, 1481175, 1678665, 2797775, 5035995, 8393325, 25179975]

約数ペア:

[(1, 25179975), (3, 8393325), (5, 5035995), (9, 2797775), (15, 1678665), (17, 1481175), (25, 1007199), (29, 868275), (45, 559555), (51, 493725), (75, 335733), (85, 296235), (87, 289425), (145, 173655), (153, 164575), (225, 111911), (227, 110925), (255, 98745), (261, 96475), (425, 59247), (435, 57885), (493, 51075), (681, 36975), (725, 34731), (765, 32915), (1135, 22185), (1275, 19749), (1305, 19295), (1479, 17025), (2043, 12325), (2175, 11577), (2465, 10215), (3405, 7395), (3825, 6583), (3859, 6525), (4437, 5675)]