290550540

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{691787}}^1$

素因数の和:691806

約数の個数: 48

約数和(自身を含む): 929763072

約数和(自身を除く): 639212532

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, 691787, 1383574, 2075361, 2767148, 3458935, 4150722, 4842509, 6917870, 8301444, 9685018, 10376805, 13835740, 14527527, 19370036, 20753610, 24212545, 29055054, 41507220, 48425090, 58110108, 72637635, 96850180, 145275270, 290550540]

約数ペア:

[(1, 290550540), (2, 145275270), (3, 96850180), (4, 72637635), (5, 58110108), (6, 48425090), (7, 41507220), (10, 29055054), (12, 24212545), (14, 20753610), (15, 19370036), (20, 14527527), (21, 13835740), (28, 10376805), (30, 9685018), (35, 8301444), (42, 6917870), (60, 4842509), (70, 4150722), (84, 3458935), (105, 2767148), (140, 2075361), (210, 1383574), (420, 691787)]