2116420

素因数分解:

$2^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{41}}^1\times {\mathrm{89}}^1$

素因数の和:168

約数の個数: 48

約数和(自身を含む): 4762800

約数和(自身を除く): 2646380

約数列:

[1, 2, 4, 5, 10, 20, 29, 41, 58, 82, 89, 116, 145, 164, 178, 205, 290, 356, 410, 445, 580, 820, 890, 1189, 1780, 2378, 2581, 3649, 4756, 5162, 5945, 7298, 10324, 11890, 12905, 14596, 18245, 23780, 25810, 36490, 51620, 72980, 105821, 211642, 423284, 529105, 1058210, 2116420]

約数ペア:

[(1, 2116420), (2, 1058210), (4, 529105), (5, 423284), (10, 211642), (20, 105821), (29, 72980), (41, 51620), (58, 36490), (82, 25810), (89, 23780), (116, 18245), (145, 14596), (164, 12905), (178, 11890), (205, 10324), (290, 7298), (356, 5945), (410, 5162), (445, 4756), (580, 3649), (820, 2581), (890, 2378), (1189, 1780)]