19844640

素因数分解:

$2^5\times 3^2\times 5^1\times {\mathrm{13781}}^1$

素因数の和:13802

約数の個数: 72

約数和(自身を含む): 67724748

約数和(自身を除く): 47880108

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 32, 36, 40, 45, 48, 60, 72, 80, 90, 96, 120, 144, 160, 180, 240, 288, 360, 480, 720, 1440, 13781, 27562, 41343, 55124, 68905, 82686, 110248, 124029, 137810, 165372, 206715, 220496, 248058, 275620, 330744, 413430, 440992, 496116, 551240, 620145, 661488, 826860, 992232, 1102480, 1240290, 1322976, 1653720, 1984464, 2204960, 2480580, 3307440, 3968928, 4961160, 6614880, 9922320, 19844640]

約数ペア:

[(1, 19844640), (2, 9922320), (3, 6614880), (4, 4961160), (5, 3968928), (6, 3307440), (8, 2480580), (9, 2204960), (10, 1984464), (12, 1653720), (15, 1322976), (16, 1240290), (18, 1102480), (20, 992232), (24, 826860), (30, 661488), (32, 620145), (36, 551240), (40, 496116), (45, 440992), (48, 413430), (60, 330744), (72, 275620), (80, 248058), (90, 220496), (96, 206715), (120, 165372), (144, 137810), (160, 124029), (180, 110248), (240, 82686), (288, 68905), (360, 55124), (480, 41343), (720, 27562), (1440, 13781)]