18734820

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{24019}}^1$

素因数の和:24044

約数の個数: 48

約数和(自身を含む): 56495040

約数和(自身を除く): 37760220

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 26, 30, 39, 52, 60, 65, 78, 130, 156, 195, 260, 390, 780, 24019, 48038, 72057, 96076, 120095, 144114, 240190, 288228, 312247, 360285, 480380, 624494, 720570, 936741, 1248988, 1441140, 1561235, 1873482, 3122470, 3746964, 4683705, 6244940, 9367410, 18734820]

約数ペア:

[(1, 18734820), (2, 9367410), (3, 6244940), (4, 4683705), (5, 3746964), (6, 3122470), (10, 1873482), (12, 1561235), (13, 1441140), (15, 1248988), (20, 936741), (26, 720570), (30, 624494), (39, 480380), (52, 360285), (60, 312247), (65, 288228), (78, 240190), (130, 144114), (156, 120095), (195, 96076), (260, 72057), (390, 48038), (780, 24019)]