4919980

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{127}}^1\times {\mathrm{149}}^1$

素因数の和:298

約数の個数: 48

約数和(自身を含む): 11289600

約数和(自身を除く): 6369620

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 127, 130, 149, 254, 260, 298, 508, 596, 635, 745, 1270, 1490, 1651, 1937, 2540, 2980, 3302, 3874, 6604, 7748, 8255, 9685, 16510, 18923, 19370, 33020, 37846, 38740, 75692, 94615, 189230, 245999, 378460, 491998, 983996, 1229995, 2459990, 4919980]

約数ペア:

[(1, 4919980), (2, 2459990), (4, 1229995), (5, 983996), (10, 491998), (13, 378460), (20, 245999), (26, 189230), (52, 94615), (65, 75692), (127, 38740), (130, 37846), (149, 33020), (254, 19370), (260, 18923), (298, 16510), (508, 9685), (596, 8255), (635, 7748), (745, 6604), (1270, 3874), (1490, 3302), (1651, 2980), (1937, 2540)]