19164520

素因数分解:

$2^3\times 5^1\times {\mathrm{23}}^1\times {\mathrm{37}}^1\times {\mathrm{563}}^1$

素因数の和:634

約数の個数: 64

約数和(自身を含む): 46293120

約数和(自身を除く): 27128600

約数列:

[1, 2, 4, 5, 8, 10, 20, 23, 37, 40, 46, 74, 92, 115, 148, 184, 185, 230, 296, 370, 460, 563, 740, 851, 920, 1126, 1480, 1702, 2252, 2815, 3404, 4255, 4504, 5630, 6808, 8510, 11260, 12949, 17020, 20831, 22520, 25898, 34040, 41662, 51796, 64745, 83324, 103592, 104155, 129490, 166648, 208310, 258980, 416620, 479113, 517960, 833240, 958226, 1916452, 2395565, 3832904, 4791130, 9582260, 19164520]

約数ペア:

[(1, 19164520), (2, 9582260), (4, 4791130), (5, 3832904), (8, 2395565), (10, 1916452), (20, 958226), (23, 833240), (37, 517960), (40, 479113), (46, 416620), (74, 258980), (92, 208310), (115, 166648), (148, 129490), (184, 104155), (185, 103592), (230, 83324), (296, 64745), (370, 51796), (460, 41662), (563, 34040), (740, 25898), (851, 22520), (920, 20831), (1126, 17020), (1480, 12949), (1702, 11260), (2252, 8510), (2815, 6808), (3404, 5630), (4255, 4504)]