204470920

素因数分解:

$2^3\times 5^1\times {\mathrm{23}}^1\times {\mathrm{109}}^1\times {\mathrm{2039}}^1$

素因数の和:2182

約数の個数: 64

約数和(自身を含む): 484704000

約数和(自身を除く): 280233080

約数列:

[1, 2, 4, 5, 8, 10, 20, 23, 40, 46, 92, 109, 115, 184, 218, 230, 436, 460, 545, 872, 920, 1090, 2039, 2180, 2507, 4078, 4360, 5014, 8156, 10028, 10195, 12535, 16312, 20056, 20390, 25070, 40780, 46897, 50140, 81560, 93794, 100280, 187588, 222251, 234485, 375176, 444502, 468970, 889004, 937940, 1111255, 1778008, 1875880, 2222510, 4445020, 5111773, 8890040, 10223546, 20447092, 25558865, 40894184, 51117730, 102235460, 204470920]

約数ペア:

[(1, 204470920), (2, 102235460), (4, 51117730), (5, 40894184), (8, 25558865), (10, 20447092), (20, 10223546), (23, 8890040), (40, 5111773), (46, 4445020), (92, 2222510), (109, 1875880), (115, 1778008), (184, 1111255), (218, 937940), (230, 889004), (436, 468970), (460, 444502), (545, 375176), (872, 234485), (920, 222251), (1090, 187588), (2039, 100280), (2180, 93794), (2507, 81560), (4078, 50140), (4360, 46897), (5014, 40780), (8156, 25070), (10028, 20390), (10195, 20056), (12535, 16312)]