28870480

素因数分解:

$2^4\times 5^1\times {\mathrm{509}}^1\times {\mathrm{709}}^1$

素因数の和:1231

約数の個数: 40

約数和(自身を含む): 67350600

約数和(自身を除く): 38480120

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 509, 709, 1018, 1418, 2036, 2545, 2836, 3545, 4072, 5090, 5672, 7090, 8144, 10180, 11344, 14180, 20360, 28360, 40720, 56720, 360881, 721762, 1443524, 1804405, 2887048, 3608810, 5774096, 7217620, 14435240, 28870480]

約数ペア:

[(1, 28870480), (2, 14435240), (4, 7217620), (5, 5774096), (8, 3608810), (10, 2887048), (16, 1804405), (20, 1443524), (40, 721762), (80, 360881), (509, 56720), (709, 40720), (1018, 28360), (1418, 20360), (2036, 14180), (2545, 11344), (2836, 10180), (3545, 8144), (4072, 7090), (5090, 5672)]