28620280

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{2393}}^1$

素因数の和:2440

約数の個数: 64

約数和(自身を含む): 72394560

約数和(自身を除く): 43774280

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 23, 26, 40, 46, 52, 65, 92, 104, 115, 130, 184, 230, 260, 299, 460, 520, 598, 920, 1196, 1495, 2392, 2393, 2990, 4786, 5980, 9572, 11960, 11965, 19144, 23930, 31109, 47860, 55039, 62218, 95720, 110078, 124436, 155545, 220156, 248872, 275195, 311090, 440312, 550390, 622180, 715507, 1100780, 1244360, 1431014, 2201560, 2862028, 3577535, 5724056, 7155070, 14310140, 28620280]

約数ペア:

[(1, 28620280), (2, 14310140), (4, 7155070), (5, 5724056), (8, 3577535), (10, 2862028), (13, 2201560), (20, 1431014), (23, 1244360), (26, 1100780), (40, 715507), (46, 622180), (52, 550390), (65, 440312), (92, 311090), (104, 275195), (115, 248872), (130, 220156), (184, 155545), (230, 124436), (260, 110078), (299, 95720), (460, 62218), (520, 55039), (598, 47860), (920, 31109), (1196, 23930), (1495, 19144), (2392, 11965), (2393, 11960), (2990, 9572), (4786, 5980)]