20808542610

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{31}}^2\times {\mathrm{240589}}^1$

素因数の和:240664

約数の個数: 72

約数和(自身を含む): 55903973580

約数和(自身を除く): 35095430970

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 31, 45, 62, 90, 93, 155, 186, 279, 310, 465, 558, 930, 961, 1395, 1922, 2790, 2883, 4805, 5766, 8649, 9610, 14415, 17298, 28830, 43245, 86490, 240589, 481178, 721767, 1202945, 1443534, 2165301, 2405890, 3608835, 4330602, 7217670, 7458259, 10826505, 14916518, 21653010, 22374777, 37291295, 44749554, 67124331, 74582590, 111873885, 134248662, 223747770, 231206029, 335621655, 462412058, 671243310, 693618087, 1156030145, 1387236174, 2080854261, 2312060290, 3468090435, 4161708522, 6936180870, 10404271305, 20808542610]

約数ペア:

[(1, 20808542610), (2, 10404271305), (3, 6936180870), (5, 4161708522), (6, 3468090435), (9, 2312060290), (10, 2080854261), (15, 1387236174), (18, 1156030145), (30, 693618087), (31, 671243310), (45, 462412058), (62, 335621655), (90, 231206029), (93, 223747770), (155, 134248662), (186, 111873885), (279, 74582590), (310, 67124331), (465, 44749554), (558, 37291295), (930, 22374777), (961, 21653010), (1395, 14916518), (1922, 10826505), (2790, 7458259), (2883, 7217670), (4805, 4330602), (5766, 3608835), (8649, 2405890), (9610, 2165301), (14415, 1443534), (17298, 1202945), (28830, 721767), (43245, 481178), (86490, 240589)]