18150680

素因数分解:

$2^3\times 5^1\times {\mathrm{23}}^1\times {\mathrm{109}}^1\times {\mathrm{181}}^1$

素因数の和:324

約数の個数: 64

約数和(自身を含む): 43243200

約数和(自身を除く): 25092520

約数列:

[1, 2, 4, 5, 8, 10, 20, 23, 40, 46, 92, 109, 115, 181, 184, 218, 230, 362, 436, 460, 545, 724, 872, 905, 920, 1090, 1448, 1810, 2180, 2507, 3620, 4163, 4360, 5014, 7240, 8326, 10028, 12535, 16652, 19729, 20056, 20815, 25070, 33304, 39458, 41630, 50140, 78916, 83260, 98645, 100280, 157832, 166520, 197290, 394580, 453767, 789160, 907534, 1815068, 2268835, 3630136, 4537670, 9075340, 18150680]

約数ペア:

[(1, 18150680), (2, 9075340), (4, 4537670), (5, 3630136), (8, 2268835), (10, 1815068), (20, 907534), (23, 789160), (40, 453767), (46, 394580), (92, 197290), (109, 166520), (115, 157832), (181, 100280), (184, 98645), (218, 83260), (230, 78916), (362, 50140), (436, 41630), (460, 39458), (545, 33304), (724, 25070), (872, 20815), (905, 20056), (920, 19729), (1090, 16652), (1448, 12535), (1810, 10028), (2180, 8326), (2507, 7240), (3620, 5014), (4163, 4360)]