20790420

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{59}}^1\times {\mathrm{839}}^1$

素因数の和:917

約数の個数: 96

約数和(自身を含む): 67737600

約数和(自身を除く): 46947180

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 59, 60, 70, 84, 105, 118, 140, 177, 210, 236, 295, 354, 413, 420, 590, 708, 826, 839, 885, 1180, 1239, 1652, 1678, 1770, 2065, 2478, 2517, 3356, 3540, 4130, 4195, 4956, 5034, 5873, 6195, 8260, 8390, 10068, 11746, 12390, 12585, 16780, 17619, 23492, 24780, 25170, 29365, 35238, 49501, 50340, 58730, 70476, 88095, 99002, 117460, 148503, 176190, 198004, 247505, 297006, 346507, 352380, 495010, 594012, 693014, 742515, 990020, 1039521, 1386028, 1485030, 1732535, 2079042, 2970060, 3465070, 4158084, 5197605, 6930140, 10395210, 20790420]

約数ペア:

[(1, 20790420), (2, 10395210), (3, 6930140), (4, 5197605), (5, 4158084), (6, 3465070), (7, 2970060), (10, 2079042), (12, 1732535), (14, 1485030), (15, 1386028), (20, 1039521), (21, 990020), (28, 742515), (30, 693014), (35, 594012), (42, 495010), (59, 352380), (60, 346507), (70, 297006), (84, 247505), (105, 198004), (118, 176190), (140, 148503), (177, 117460), (210, 99002), (236, 88095), (295, 70476), (354, 58730), (413, 50340), (420, 49501), (590, 35238), (708, 29365), (826, 25170), (839, 24780), (885, 23492), (1180, 17619), (1239, 16780), (1652, 12585), (1678, 12390), (1770, 11746), (2065, 10068), (2478, 8390), (2517, 8260), (3356, 6195), (3540, 5873), (4130, 5034), (4195, 4956)]