16691920

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{41}}^1\times {\mathrm{727}}^1$

素因数の和:788

約数の個数: 80

約数和(自身を含む): 45497088

約数和(自身を除く): 28805168

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 41, 56, 70, 80, 82, 112, 140, 164, 205, 280, 287, 328, 410, 560, 574, 656, 727, 820, 1148, 1435, 1454, 1640, 2296, 2870, 2908, 3280, 3635, 4592, 5089, 5740, 5816, 7270, 10178, 11480, 11632, 14540, 20356, 22960, 25445, 29080, 29807, 40712, 50890, 58160, 59614, 81424, 101780, 119228, 149035, 203560, 208649, 238456, 298070, 407120, 417298, 476912, 596140, 834596, 1043245, 1192280, 1669192, 2086490, 2384560, 3338384, 4172980, 8345960, 16691920]

約数ペア:

[(1, 16691920), (2, 8345960), (4, 4172980), (5, 3338384), (7, 2384560), (8, 2086490), (10, 1669192), (14, 1192280), (16, 1043245), (20, 834596), (28, 596140), (35, 476912), (40, 417298), (41, 407120), (56, 298070), (70, 238456), (80, 208649), (82, 203560), (112, 149035), (140, 119228), (164, 101780), (205, 81424), (280, 59614), (287, 58160), (328, 50890), (410, 40712), (560, 29807), (574, 29080), (656, 25445), (727, 22960), (820, 20356), (1148, 14540), (1435, 11632), (1454, 11480), (1640, 10178), (2296, 7270), (2870, 5816), (2908, 5740), (3280, 5089), (3635, 4592)]