12437780

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{71}}^1\times {\mathrm{461}}^1$

素因数の和:560

約数の個数: 48

約数和(自身を含む): 27941760

約数和(自身を除く): 15503980

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 71, 76, 95, 142, 190, 284, 355, 380, 461, 710, 922, 1349, 1420, 1844, 2305, 2698, 4610, 5396, 6745, 8759, 9220, 13490, 17518, 26980, 32731, 35036, 43795, 65462, 87590, 130924, 163655, 175180, 327310, 621889, 654620, 1243778, 2487556, 3109445, 6218890, 12437780]

約数ペア:

[(1, 12437780), (2, 6218890), (4, 3109445), (5, 2487556), (10, 1243778), (19, 654620), (20, 621889), (38, 327310), (71, 175180), (76, 163655), (95, 130924), (142, 87590), (190, 65462), (284, 43795), (355, 35036), (380, 32731), (461, 26980), (710, 17518), (922, 13490), (1349, 9220), (1420, 8759), (1844, 6745), (2305, 5396), (2698, 4610)]