18852620

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{83}}^1\times {\mathrm{277}}^1$

素因数の和:410

約数の個数: 48

約数和(自身を含む): 41192928

約数和(自身を除く): 22340308

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 83, 164, 166, 205, 277, 332, 410, 415, 554, 820, 830, 1108, 1385, 1660, 2770, 3403, 5540, 6806, 11357, 13612, 17015, 22714, 22991, 34030, 45428, 45982, 56785, 68060, 91964, 113570, 114955, 227140, 229910, 459820, 942631, 1885262, 3770524, 4713155, 9426310, 18852620]

約数ペア:

[(1, 18852620), (2, 9426310), (4, 4713155), (5, 3770524), (10, 1885262), (20, 942631), (41, 459820), (82, 229910), (83, 227140), (164, 114955), (166, 113570), (205, 91964), (277, 68060), (332, 56785), (410, 45982), (415, 45428), (554, 34030), (820, 22991), (830, 22714), (1108, 17015), (1385, 13612), (1660, 11357), (2770, 6806), (3403, 5540)]