149747980

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{149}}^1\times {\mathrm{1621}}^1$

素因数の和:1810

約数の個数: 48

約数和(自身を含む): 326995200

約数和(自身を除く): 177247220

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 149, 155, 298, 310, 596, 620, 745, 1490, 1621, 2980, 3242, 4619, 6484, 8105, 9238, 16210, 18476, 23095, 32420, 46190, 50251, 92380, 100502, 201004, 241529, 251255, 483058, 502510, 966116, 1005020, 1207645, 2415290, 4830580, 7487399, 14974798, 29949596, 37436995, 74873990, 149747980]

約数ペア:

[(1, 149747980), (2, 74873990), (4, 37436995), (5, 29949596), (10, 14974798), (20, 7487399), (31, 4830580), (62, 2415290), (124, 1207645), (149, 1005020), (155, 966116), (298, 502510), (310, 483058), (596, 251255), (620, 241529), (745, 201004), (1490, 100502), (1621, 92380), (2980, 50251), (3242, 46190), (4619, 32420), (6484, 23095), (8105, 18476), (9238, 16210)]