19189820

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{3209}}^1$

素因数の和:3254

約数の個数: 48

約数和(自身を含む): 45299520

約数和(自身を除く): 26109700

約数列:

[1, 2, 4, 5, 10, 13, 20, 23, 26, 46, 52, 65, 92, 115, 130, 230, 260, 299, 460, 598, 1196, 1495, 2990, 3209, 5980, 6418, 12836, 16045, 32090, 41717, 64180, 73807, 83434, 147614, 166868, 208585, 295228, 369035, 417170, 738070, 834340, 959491, 1476140, 1918982, 3837964, 4797455, 9594910, 19189820]

約数ペア:

[(1, 19189820), (2, 9594910), (4, 4797455), (5, 3837964), (10, 1918982), (13, 1476140), (20, 959491), (23, 834340), (26, 738070), (46, 417170), (52, 369035), (65, 295228), (92, 208585), (115, 166868), (130, 147614), (230, 83434), (260, 73807), (299, 64180), (460, 41717), (598, 32090), (1196, 16045), (1495, 12836), (2990, 6418), (3209, 5980)]