20599740

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{16349}}^1$

素因数の和:16371

約数の個数: 72

約数和(自身を含む): 71416800

約数和(自身を除く): 50817060

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, 16349, 32698, 49047, 65396, 81745, 98094, 114443, 147141, 163490, 196188, 228886, 245235, 294282, 326980, 343329, 457772, 490470, 572215, 588564, 686658, 735705, 980940, 1029987, 1144430, 1373316, 1471410, 1716645, 2059974, 2288860, 2942820, 3433290, 4119948, 5149935, 6866580, 10299870, 20599740]

約数ペア:

[(1, 20599740), (2, 10299870), (3, 6866580), (4, 5149935), (5, 4119948), (6, 3433290), (7, 2942820), (9, 2288860), (10, 2059974), (12, 1716645), (14, 1471410), (15, 1373316), (18, 1144430), (20, 1029987), (21, 980940), (28, 735705), (30, 686658), (35, 588564), (36, 572215), (42, 490470), (45, 457772), (60, 343329), (63, 326980), (70, 294282), (84, 245235), (90, 228886), (105, 196188), (126, 163490), (140, 147141), (180, 114443), (210, 98094), (252, 81745), (315, 65396), (420, 49047), (630, 32698), (1260, 16349)]