491382740

素因数分解:

$2^2\times 5^1\times {\mathrm{199}}^1\times {\mathrm{331}}^1\times {\mathrm{373}}^1$

素因数の和:912

約数の個数: 48

約数和(自身を含む): 1043011200

約数和(自身を除く): 551628460

約数列:

[1, 2, 4, 5, 10, 20, 199, 331, 373, 398, 662, 746, 796, 995, 1324, 1492, 1655, 1865, 1990, 3310, 3730, 3980, 6620, 7460, 65869, 74227, 123463, 131738, 148454, 246926, 263476, 296908, 329345, 371135, 493852, 617315, 658690, 742270, 1234630, 1317380, 1484540, 2469260, 24569137, 49138274, 98276548, 122845685, 245691370, 491382740]

約数ペア:

[(1, 491382740), (2, 245691370), (4, 122845685), (5, 98276548), (10, 49138274), (20, 24569137), (199, 2469260), (331, 1484540), (373, 1317380), (398, 1234630), (662, 742270), (746, 658690), (796, 617315), (995, 493852), (1324, 371135), (1492, 329345), (1655, 296908), (1865, 263476), (1990, 246926), (3310, 148454), (3730, 131738), (3980, 123463), (6620, 74227), (7460, 65869)]