8198540

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{157}}^1\times {\mathrm{373}}^1$

素因数の和:546

約数の個数: 48

約数和(自身を含む): 19854912

約数和(自身を除く): 11656372

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 157, 314, 373, 628, 746, 785, 1099, 1492, 1570, 1865, 2198, 2611, 3140, 3730, 4396, 5222, 5495, 7460, 10444, 10990, 13055, 21980, 26110, 52220, 58561, 117122, 234244, 292805, 409927, 585610, 819854, 1171220, 1639708, 2049635, 4099270, 8198540]

約数ペア:

[(1, 8198540), (2, 4099270), (4, 2049635), (5, 1639708), (7, 1171220), (10, 819854), (14, 585610), (20, 409927), (28, 292805), (35, 234244), (70, 117122), (140, 58561), (157, 52220), (314, 26110), (373, 21980), (628, 13055), (746, 10990), (785, 10444), (1099, 7460), (1492, 5495), (1570, 5222), (1865, 4396), (2198, 3730), (2611, 3140)]