20911320

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{2003}}^1$

素因数の和:2049

約数の個数: 96

約数和(自身を含む): 70340400

約数和(自身を除く): 49429080

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 29, 30, 36, 40, 45, 58, 60, 72, 87, 90, 116, 120, 145, 174, 180, 232, 261, 290, 348, 360, 435, 522, 580, 696, 870, 1044, 1160, 1305, 1740, 2003, 2088, 2610, 3480, 4006, 5220, 6009, 8012, 10015, 10440, 12018, 16024, 18027, 20030, 24036, 30045, 36054, 40060, 48072, 58087, 60090, 72108, 80120, 90135, 116174, 120180, 144216, 174261, 180270, 232348, 240360, 290435, 348522, 360540, 464696, 522783, 580870, 697044, 721080, 871305, 1045566, 1161740, 1394088, 1742610, 2091132, 2323480, 2613915, 3485220, 4182264, 5227830, 6970440, 10455660, 20911320]

約数ペア:

[(1, 20911320), (2, 10455660), (3, 6970440), (4, 5227830), (5, 4182264), (6, 3485220), (8, 2613915), (9, 2323480), (10, 2091132), (12, 1742610), (15, 1394088), (18, 1161740), (20, 1045566), (24, 871305), (29, 721080), (30, 697044), (36, 580870), (40, 522783), (45, 464696), (58, 360540), (60, 348522), (72, 290435), (87, 240360), (90, 232348), (116, 180270), (120, 174261), (145, 144216), (174, 120180), (180, 116174), (232, 90135), (261, 80120), (290, 72108), (348, 60090), (360, 58087), (435, 48072), (522, 40060), (580, 36054), (696, 30045), (870, 24036), (1044, 20030), (1160, 18027), (1305, 16024), (1740, 12018), (2003, 10440), (2088, 10015), (2610, 8012), (3480, 6009), (4006, 5220)]