720163120

素因数分解:

$2^4\times 5^1\times {\mathrm{23}}^1\times {\mathrm{391393}}^1$

素因数の和:391429

約数の個数: 40

約数和(自身を含む): 1747182816

約数和(自身を除く): 1027019696

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 23, 40, 46, 80, 92, 115, 184, 230, 368, 460, 920, 1840, 391393, 782786, 1565572, 1956965, 3131144, 3913930, 6262288, 7827860, 9002039, 15655720, 18004078, 31311440, 36008156, 45010195, 72016312, 90020390, 144032624, 180040780, 360081560, 720163120]

約数ペア:

[(1, 720163120), (2, 360081560), (4, 180040780), (5, 144032624), (8, 90020390), (10, 72016312), (16, 45010195), (20, 36008156), (23, 31311440), (40, 18004078), (46, 15655720), (80, 9002039), (92, 7827860), (115, 6262288), (184, 3913930), (230, 3131144), (368, 1956965), (460, 1565572), (920, 782786), (1840, 391393)]