65780920

素因数分解:

$2^3\times 5^1\times {\mathrm{23}}^1\times {\mathrm{127}}^1\times {\mathrm{563}}^1$

素因数の和:724

約数の個数: 64

約数和(自身を含む): 155934720

約数和(自身を除く): 90153800

約数列:

[1, 2, 4, 5, 8, 10, 20, 23, 40, 46, 92, 115, 127, 184, 230, 254, 460, 508, 563, 635, 920, 1016, 1126, 1270, 2252, 2540, 2815, 2921, 4504, 5080, 5630, 5842, 11260, 11684, 12949, 14605, 22520, 23368, 25898, 29210, 51796, 58420, 64745, 71501, 103592, 116840, 129490, 143002, 258980, 286004, 357505, 517960, 572008, 715010, 1430020, 1644523, 2860040, 3289046, 6578092, 8222615, 13156184, 16445230, 32890460, 65780920]

約数ペア:

[(1, 65780920), (2, 32890460), (4, 16445230), (5, 13156184), (8, 8222615), (10, 6578092), (20, 3289046), (23, 2860040), (40, 1644523), (46, 1430020), (92, 715010), (115, 572008), (127, 517960), (184, 357505), (230, 286004), (254, 258980), (460, 143002), (508, 129490), (563, 116840), (635, 103592), (920, 71501), (1016, 64745), (1126, 58420), (1270, 51796), (2252, 29210), (2540, 25898), (2815, 23368), (2921, 22520), (4504, 14605), (5080, 12949), (5630, 11684), (5842, 11260)]