18747540

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{14879}}^1$

素因数の和:14901

約数の個数: 72

約数和(自身を含む): 64995840

約数和(自身を除く): 46248300

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 28, 30, 35, 36, 42, 45, 60, 63, 70, 84, 90, 105, 126, 140, 180, 210, 252, 315, 420, 630, 1260, 14879, 29758, 44637, 59516, 74395, 89274, 104153, 133911, 148790, 178548, 208306, 223185, 267822, 297580, 312459, 416612, 446370, 520765, 535644, 624918, 669555, 892740, 937377, 1041530, 1249836, 1339110, 1562295, 1874754, 2083060, 2678220, 3124590, 3749508, 4686885, 6249180, 9373770, 18747540]

約数ペア:

[(1, 18747540), (2, 9373770), (3, 6249180), (4, 4686885), (5, 3749508), (6, 3124590), (7, 2678220), (9, 2083060), (10, 1874754), (12, 1562295), (14, 1339110), (15, 1249836), (18, 1041530), (20, 937377), (21, 892740), (28, 669555), (30, 624918), (35, 535644), (36, 520765), (42, 446370), (45, 416612), (60, 312459), (63, 297580), (70, 267822), (84, 223185), (90, 208306), (105, 178548), (126, 148790), (140, 133911), (180, 104153), (210, 89274), (252, 74395), (315, 59516), (420, 44637), (630, 29758), (1260, 14879)]