19374685520

素因数分解:

$2^4\times 5^1\times {\mathrm{439}}^1\times {\mathrm{551671}}^1$

素因数の和:552123

約数の個数: 40

約数和(自身を含む): 45148836480

約数和(自身を除く): 25774150960

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 439, 878, 1756, 2195, 3512, 4390, 7024, 8780, 17560, 35120, 551671, 1103342, 2206684, 2758355, 4413368, 5516710, 8826736, 11033420, 22066840, 44133680, 242183569, 484367138, 968734276, 1210917845, 1937468552, 2421835690, 3874937104, 4843671380, 9687342760, 19374685520]

約数ペア:

[(1, 19374685520), (2, 9687342760), (4, 4843671380), (5, 3874937104), (8, 2421835690), (10, 1937468552), (16, 1210917845), (20, 968734276), (40, 484367138), (80, 242183569), (439, 44133680), (878, 22066840), (1756, 11033420), (2195, 8826736), (3512, 5516710), (4390, 4413368), (7024, 2758355), (8780, 2206684), (17560, 1103342), (35120, 551671)]