221980920

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{264263}}^1$

素因数の和:264284

約数の個数: 64

約数和(自身を含む): 761080320

約数和(自身を除く): 539099400

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 56, 60, 70, 84, 105, 120, 140, 168, 210, 280, 420, 840, 264263, 528526, 792789, 1057052, 1321315, 1585578, 1849841, 2114104, 2642630, 3171156, 3699682, 3963945, 5285260, 5549523, 6342312, 7399364, 7927890, 9249205, 10570520, 11099046, 14798728, 15855780, 18498410, 22198092, 27747615, 31711560, 36996820, 44396184, 55495230, 73993640, 110990460, 221980920]

約数ペア:

[(1, 221980920), (2, 110990460), (3, 73993640), (4, 55495230), (5, 44396184), (6, 36996820), (7, 31711560), (8, 27747615), (10, 22198092), (12, 18498410), (14, 15855780), (15, 14798728), (20, 11099046), (21, 10570520), (24, 9249205), (28, 7927890), (30, 7399364), (35, 6342312), (40, 5549523), (42, 5285260), (56, 3963945), (60, 3699682), (70, 3171156), (84, 2642630), (105, 2114104), (120, 1849841), (140, 1585578), (168, 1321315), (210, 1057052), (280, 792789), (420, 528526), (840, 264263)]