18003640

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{23689}}^1$

素因数の和:23719

約数の個数: 32

約数和(自身を含む): 42642000

約数和(自身を除く): 24638360

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 76, 95, 152, 190, 380, 760, 23689, 47378, 94756, 118445, 189512, 236890, 450091, 473780, 900182, 947560, 1800364, 2250455, 3600728, 4500910, 9001820, 18003640]

約数ペア:

[(1, 18003640), (2, 9001820), (4, 4500910), (5, 3600728), (8, 2250455), (10, 1800364), (19, 947560), (20, 900182), (38, 473780), (40, 450091), (76, 236890), (95, 189512), (152, 118445), (190, 94756), (380, 47378), (760, 23689)]