521980620

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{1242811}}^1$

素因数の和:1242830

約数の個数: 48

約数和(自身を含む): 1670339328

約数和(自身を除く): 1148358708

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, 1242811, 2485622, 3728433, 4971244, 6214055, 7456866, 8699677, 12428110, 14913732, 17399354, 18642165, 24856220, 26099031, 34798708, 37284330, 43498385, 52198062, 74568660, 86996770, 104396124, 130495155, 173993540, 260990310, 521980620]

約数ペア:

[(1, 521980620), (2, 260990310), (3, 173993540), (4, 130495155), (5, 104396124), (6, 86996770), (7, 74568660), (10, 52198062), (12, 43498385), (14, 37284330), (15, 34798708), (20, 26099031), (21, 24856220), (28, 18642165), (30, 17399354), (35, 14913732), (42, 12428110), (60, 8699677), (70, 7456866), (84, 6214055), (105, 4971244), (140, 3728433), (210, 2485622), (420, 1242811)]