219045540

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{521537}}^1$

素因数の和:521556

約数の個数: 48

約数和(自身を含む): 700947072

約数和(自身を除く): 481901532

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, 521537, 1043074, 1564611, 2086148, 2607685, 3129222, 3650759, 5215370, 6258444, 7301518, 7823055, 10430740, 10952277, 14603036, 15646110, 18253795, 21904554, 31292220, 36507590, 43809108, 54761385, 73015180, 109522770, 219045540]

約数ペア:

[(1, 219045540), (2, 109522770), (3, 73015180), (4, 54761385), (5, 43809108), (6, 36507590), (7, 31292220), (10, 21904554), (12, 18253795), (14, 15646110), (15, 14603036), (20, 10952277), (21, 10430740), (28, 7823055), (30, 7301518), (35, 6258444), (42, 5215370), (60, 3650759), (70, 3129222), (84, 2607685), (105, 2086148), (140, 1564611), (210, 1043074), (420, 521537)]