19820880

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{27529}}^1$

素因数の和:27548

約数の個数: 60

約数和(自身を含む): 66567540

約数和(自身を除く): 46746660

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 36, 40, 45, 48, 60, 72, 80, 90, 120, 144, 180, 240, 360, 720, 27529, 55058, 82587, 110116, 137645, 165174, 220232, 247761, 275290, 330348, 412935, 440464, 495522, 550580, 660696, 825870, 991044, 1101160, 1238805, 1321392, 1651740, 1982088, 2202320, 2477610, 3303480, 3964176, 4955220, 6606960, 9910440, 19820880]

約数ペア:

[(1, 19820880), (2, 9910440), (3, 6606960), (4, 4955220), (5, 3964176), (6, 3303480), (8, 2477610), (9, 2202320), (10, 1982088), (12, 1651740), (15, 1321392), (16, 1238805), (18, 1101160), (20, 991044), (24, 825870), (30, 660696), (36, 550580), (40, 495522), (45, 440464), (48, 412935), (60, 330348), (72, 275290), (80, 247761), (90, 220232), (120, 165174), (144, 137645), (180, 110116), (240, 82587), (360, 55058), (720, 27529)]