278270440

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{993823}}^1$

素因数の和:993841

約数の個数: 32

約数和(自身を含む): 715553280

約数和(自身を除く): 437282840

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 993823, 1987646, 3975292, 4969115, 6956761, 7950584, 9938230, 13913522, 19876460, 27827044, 34783805, 39752920, 55654088, 69567610, 139135220, 278270440]

約数ペア:

[(1, 278270440), (2, 139135220), (4, 69567610), (5, 55654088), (7, 39752920), (8, 34783805), (10, 27827044), (14, 19876460), (20, 13913522), (28, 9938230), (35, 7950584), (40, 6956761), (56, 4969115), (70, 3975292), (140, 1987646), (280, 993823)]