647702020

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{6581}}^1$

素因数の和:6653

約数の個数: 96

約数和(自身を含む): 1680779520

約数和(自身を除く): 1033077500

約数列:

[1, 2, 4, 5, 7, 10, 14, 19, 20, 28, 35, 37, 38, 70, 74, 76, 95, 133, 140, 148, 185, 190, 259, 266, 370, 380, 518, 532, 665, 703, 740, 1036, 1295, 1330, 1406, 2590, 2660, 2812, 3515, 4921, 5180, 6581, 7030, 9842, 13162, 14060, 19684, 24605, 26324, 32905, 46067, 49210, 65810, 92134, 98420, 125039, 131620, 184268, 230335, 243497, 250078, 460670, 486994, 500156, 625195, 875273, 921340, 973988, 1217485, 1250390, 1704479, 1750546, 2434970, 2500780, 3408958, 3501092, 4376365, 4626443, 4869940, 6817916, 8522395, 8752730, 9252886, 17044790, 17505460, 18505772, 23132215, 32385101, 34089580, 46264430, 64770202, 92528860, 129540404, 161925505, 323851010, 647702020]

約数ペア:

[(1, 647702020), (2, 323851010), (4, 161925505), (5, 129540404), (7, 92528860), (10, 64770202), (14, 46264430), (19, 34089580), (20, 32385101), (28, 23132215), (35, 18505772), (37, 17505460), (38, 17044790), (70, 9252886), (74, 8752730), (76, 8522395), (95, 6817916), (133, 4869940), (140, 4626443), (148, 4376365), (185, 3501092), (190, 3408958), (259, 2500780), (266, 2434970), (370, 1750546), (380, 1704479), (518, 1250390), (532, 1217485), (665, 973988), (703, 921340), (740, 875273), (1036, 625195), (1295, 500156), (1330, 486994), (1406, 460670), (2590, 250078), (2660, 243497), (2812, 230335), (3515, 184268), (4921, 131620), (5180, 125039), (6581, 98420), (7030, 92134), (9842, 65810), (13162, 49210), (14060, 46067), (19684, 32905), (24605, 26324)]