18979560

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{52721}}^1$

素因数の和:52738

約数の個数: 48

約数和(自身を含む): 61684740

約数和(自身を除く): 42705180

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 30, 36, 40, 45, 60, 72, 90, 120, 180, 360, 52721, 105442, 158163, 210884, 263605, 316326, 421768, 474489, 527210, 632652, 790815, 948978, 1054420, 1265304, 1581630, 1897956, 2108840, 2372445, 3163260, 3795912, 4744890, 6326520, 9489780, 18979560]

約数ペア:

[(1, 18979560), (2, 9489780), (3, 6326520), (4, 4744890), (5, 3795912), (6, 3163260), (8, 2372445), (9, 2108840), (10, 1897956), (12, 1581630), (15, 1265304), (18, 1054420), (20, 948978), (24, 790815), (30, 632652), (36, 527210), (40, 474489), (45, 421768), (60, 316326), (72, 263605), (90, 210884), (120, 158163), (180, 105442), (360, 52721)]