19120720

素因数分解:

$2^4\times 5^1\times {\mathrm{59}}^1\times {\mathrm{4051}}^1$

素因数の和:4123

約数の個数: 40

約数和(自身を含む): 45220320

約数和(自身を除く): 26099600

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 59, 80, 118, 236, 295, 472, 590, 944, 1180, 2360, 4051, 4720, 8102, 16204, 20255, 32408, 40510, 64816, 81020, 162040, 239009, 324080, 478018, 956036, 1195045, 1912072, 2390090, 3824144, 4780180, 9560360, 19120720]

約数ペア:

[(1, 19120720), (2, 9560360), (4, 4780180), (5, 3824144), (8, 2390090), (10, 1912072), (16, 1195045), (20, 956036), (40, 478018), (59, 324080), (80, 239009), (118, 162040), (236, 81020), (295, 64816), (472, 40510), (590, 32408), (944, 20255), (1180, 16204), (2360, 8102), (4051, 4720)]