4491980

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{11821}}^1$

素因数の和:11849

約数の個数: 24

約数和(自身を含む): 9930480

約数和(自身を除く): 5438500

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 380, 11821, 23642, 47284, 59105, 118210, 224599, 236420, 449198, 898396, 1122995, 2245990, 4491980]

約数ペア:

[(1, 4491980), (2, 2245990), (4, 1122995), (5, 898396), (10, 449198), (19, 236420), (20, 224599), (38, 118210), (76, 59105), (95, 47284), (190, 23642), (380, 11821)]