225181520

素因数分解:

$2^4\times 5^1\times {\mathrm{29}}^1\times {\mathrm{31}}^2\times {\mathrm{101}}^1$

素因数の和:205

約数の個数: 120

約数和(自身を含む): 565175880

約数和(自身を除く): 339994360

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 29, 31, 40, 58, 62, 80, 101, 116, 124, 145, 155, 202, 232, 248, 290, 310, 404, 464, 496, 505, 580, 620, 808, 899, 961, 1010, 1160, 1240, 1616, 1798, 1922, 2020, 2320, 2480, 2929, 3131, 3596, 3844, 4040, 4495, 4805, 5858, 6262, 7192, 7688, 8080, 8990, 9610, 11716, 12524, 14384, 14645, 15376, 15655, 17980, 19220, 23432, 25048, 27869, 29290, 31310, 35960, 38440, 46864, 50096, 55738, 58580, 62620, 71920, 76880, 90799, 97061, 111476, 117160, 125240, 139345, 181598, 194122, 222952, 234320, 250480, 278690, 363196, 388244, 445904, 453995, 485305, 557380, 726392, 776488, 907990, 970610, 1114760, 1452784, 1552976, 1815980, 1941220, 2229520, 2814769, 3631960, 3882440, 5629538, 7263920, 7764880, 11259076, 14073845, 22518152, 28147690, 45036304, 56295380, 112590760, 225181520]

約数ペア:

[(1, 225181520), (2, 112590760), (4, 56295380), (5, 45036304), (8, 28147690), (10, 22518152), (16, 14073845), (20, 11259076), (29, 7764880), (31, 7263920), (40, 5629538), (58, 3882440), (62, 3631960), (80, 2814769), (101, 2229520), (116, 1941220), (124, 1815980), (145, 1552976), (155, 1452784), (202, 1114760), (232, 970610), (248, 907990), (290, 776488), (310, 726392), (404, 557380), (464, 485305), (496, 453995), (505, 445904), (580, 388244), (620, 363196), (808, 278690), (899, 250480), (961, 234320), (1010, 222952), (1160, 194122), (1240, 181598), (1616, 139345), (1798, 125240), (1922, 117160), (2020, 111476), (2320, 97061), (2480, 90799), (2929, 76880), (3131, 71920), (3596, 62620), (3844, 58580), (4040, 55738), (4495, 50096), (4805, 46864), (5858, 38440), (6262, 35960), (7192, 31310), (7688, 29290), (8080, 27869), (8990, 25048), (9610, 23432), (11716, 19220), (12524, 17980), (14384, 15655), (14645, 15376)]