18583660

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{131}}^1\times {\mathrm{173}}^1$

素因数の和:354

約数の個数: 48

約数和(自身を含む): 40515552

約数和(自身を除く): 21931892

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 131, 164, 173, 205, 262, 346, 410, 524, 655, 692, 820, 865, 1310, 1730, 2620, 3460, 5371, 7093, 10742, 14186, 21484, 22663, 26855, 28372, 35465, 45326, 53710, 70930, 90652, 107420, 113315, 141860, 226630, 453260, 929183, 1858366, 3716732, 4645915, 9291830, 18583660]

約数ペア:

[(1, 18583660), (2, 9291830), (4, 4645915), (5, 3716732), (10, 1858366), (20, 929183), (41, 453260), (82, 226630), (131, 141860), (164, 113315), (173, 107420), (205, 90652), (262, 70930), (346, 53710), (410, 45326), (524, 35465), (655, 28372), (692, 26855), (820, 22663), (865, 21484), (1310, 14186), (1730, 10742), (2620, 7093), (3460, 5371)]