20364880

素因数分解:

$2^4\times 5^1\times {\mathrm{83}}^1\times {\mathrm{3067}}^1$

素因数の和:3163

約数の個数: 40

約数和(自身を含む): 47934432

約数和(自身を除く): 27569552

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 83, 166, 332, 415, 664, 830, 1328, 1660, 3067, 3320, 6134, 6640, 12268, 15335, 24536, 30670, 49072, 61340, 122680, 245360, 254561, 509122, 1018244, 1272805, 2036488, 2545610, 4072976, 5091220, 10182440, 20364880]

約数ペア:

[(1, 20364880), (2, 10182440), (4, 5091220), (5, 4072976), (8, 2545610), (10, 2036488), (16, 1272805), (20, 1018244), (40, 509122), (80, 254561), (83, 245360), (166, 122680), (332, 61340), (415, 49072), (664, 30670), (830, 24536), (1328, 15335), (1660, 12268), (3067, 6640), (3320, 6134)]