381023440

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{680399}}^1$

素因数の和:680419

約数の個数: 40

約数和(自身を含む): 1012435200

約数和(自身を除く): 631411760

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 560, 680399, 1360798, 2721596, 3401995, 4762793, 5443192, 6803990, 9525586, 10886384, 13607980, 19051172, 23813965, 27215960, 38102344, 47627930, 54431920, 76204688, 95255860, 190511720, 381023440]

約数ペア:

[(1, 381023440), (2, 190511720), (4, 95255860), (5, 76204688), (7, 54431920), (8, 47627930), (10, 38102344), (14, 27215960), (16, 23813965), (20, 19051172), (28, 13607980), (35, 10886384), (40, 9525586), (56, 6803990), (70, 5443192), (80, 4762793), (112, 3401995), (140, 2721596), (280, 1360798), (560, 680399)]