128468745

素因数分解:

$3^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{61}}^1\times {\mathrm{2753}}^1$

素因数の和:2842

約数の個数: 48

約数和(自身を含む): 239730192

約数和(自身を除く): 111261447

約数列:

[1, 3, 5, 9, 15, 17, 45, 51, 61, 85, 153, 183, 255, 305, 549, 765, 915, 1037, 2745, 2753, 3111, 5185, 8259, 9333, 13765, 15555, 24777, 41295, 46665, 46801, 123885, 140403, 167933, 234005, 421209, 503799, 702015, 839665, 1511397, 2106045, 2518995, 2854861, 7556985, 8564583, 14274305, 25693749, 42822915, 128468745]

約数ペア:

[(1, 128468745), (3, 42822915), (5, 25693749), (9, 14274305), (15, 8564583), (17, 7556985), (45, 2854861), (51, 2518995), (61, 2106045), (85, 1511397), (153, 839665), (183, 702015), (255, 503799), (305, 421209), (549, 234005), (765, 167933), (915, 140403), (1037, 123885), (2745, 46801), (2753, 46665), (3111, 41295), (5185, 24777), (8259, 15555), (9333, 13765)]