161783580

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{385199}}^1$

素因数の和:385218

約数の個数: 48

約数和(自身を含む): 517708800

約数和(自身を除く): 355925220

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 420, 385199, 770398, 1155597, 1540796, 1925995, 2311194, 2696393, 3851990, 4622388, 5392786, 5777985, 7703980, 8089179, 10785572, 11555970, 13481965, 16178358, 23111940, 26963930, 32356716, 40445895, 53927860, 80891790, 161783580]

約数ペア:

[(1, 161783580), (2, 80891790), (3, 53927860), (4, 40445895), (5, 32356716), (6, 26963930), (7, 23111940), (10, 16178358), (12, 13481965), (14, 11555970), (15, 10785572), (20, 8089179), (21, 7703980), (28, 5777985), (30, 5392786), (35, 4622388), (42, 3851990), (60, 2696393), (70, 2311194), (84, 1925995), (105, 1540796), (140, 1155597), (210, 770398), (420, 385199)]