19740915

素因数分解:

$3^4\times 5^1\times {\mathrm{79}}^1\times {\mathrm{617}}^1$

素因数の和:713

約数の個数: 40

約数和(自身を含む): 35893440

約数和(自身を除く): 16152525

約数列:

[1, 3, 5, 9, 15, 27, 45, 79, 81, 135, 237, 395, 405, 617, 711, 1185, 1851, 2133, 3085, 3555, 5553, 6399, 9255, 10665, 16659, 27765, 31995, 48743, 49977, 83295, 146229, 243715, 249885, 438687, 731145, 1316061, 2193435, 3948183, 6580305, 19740915]

約数ペア:

[(1, 19740915), (3, 6580305), (5, 3948183), (9, 2193435), (15, 1316061), (27, 731145), (45, 438687), (79, 249885), (81, 243715), (135, 146229), (237, 83295), (395, 49977), (405, 48743), (617, 31995), (711, 27765), (1185, 16659), (1851, 10665), (2133, 9255), (3085, 6399), (3555, 5553)]