28578960

素因数分解:

$2^4\times 3^3\times 5^1\times {\mathrm{101}}^1\times {\mathrm{131}}^1$

素因数の和:254

約数の個数: 160

約数和(自身を含む): 100172160

約数和(自身を除く): 71593200

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 27, 30, 36, 40, 45, 48, 54, 60, 72, 80, 90, 101, 108, 120, 131, 135, 144, 180, 202, 216, 240, 262, 270, 303, 360, 393, 404, 432, 505, 524, 540, 606, 655, 720, 786, 808, 909, 1010, 1048, 1080, 1179, 1212, 1310, 1515, 1572, 1616, 1818, 1965, 2020, 2096, 2160, 2358, 2424, 2620, 2727, 3030, 3144, 3537, 3636, 3930, 4040, 4545, 4716, 4848, 5240, 5454, 5895, 6060, 6288, 7074, 7272, 7860, 8080, 9090, 9432, 10480, 10908, 11790, 12120, 13231, 13635, 14148, 14544, 15720, 17685, 18180, 18864, 21816, 23580, 24240, 26462, 27270, 28296, 31440, 35370, 36360, 39693, 43632, 47160, 52924, 54540, 56592, 66155, 70740, 72720, 79386, 94320, 105848, 109080, 119079, 132310, 141480, 158772, 198465, 211696, 218160, 238158, 264620, 282960, 317544, 357237, 396930, 476316, 529240, 595395, 635088, 714474, 793860, 952632, 1058480, 1190790, 1428948, 1587720, 1786185, 1905264, 2381580, 2857896, 3175440, 3572370, 4763160, 5715792, 7144740, 9526320, 14289480, 28578960]

約数ペア:

[(1, 28578960), (2, 14289480), (3, 9526320), (4, 7144740), (5, 5715792), (6, 4763160), (8, 3572370), (9, 3175440), (10, 2857896), (12, 2381580), (15, 1905264), (16, 1786185), (18, 1587720), (20, 1428948), (24, 1190790), (27, 1058480), (30, 952632), (36, 793860), (40, 714474), (45, 635088), (48, 595395), (54, 529240), (60, 476316), (72, 396930), (80, 357237), (90, 317544), (101, 282960), (108, 264620), (120, 238158), (131, 218160), (135, 211696), (144, 198465), (180, 158772), (202, 141480), (216, 132310), (240, 119079), (262, 109080), (270, 105848), (303, 94320), (360, 79386), (393, 72720), (404, 70740), (432, 66155), (505, 56592), (524, 54540), (540, 52924), (606, 47160), (655, 43632), (720, 39693), (786, 36360), (808, 35370), (909, 31440), (1010, 28296), (1048, 27270), (1080, 26462), (1179, 24240), (1212, 23580), (1310, 21816), (1515, 18864), (1572, 18180), (1616, 17685), (1818, 15720), (1965, 14544), (2020, 14148), (2096, 13635), (2160, 13231), (2358, 12120), (2424, 11790), (2620, 10908), (2727, 10480), (3030, 9432), (3144, 9090), (3537, 8080), (3636, 7860), (3930, 7272), (4040, 7074), (4545, 6288), (4716, 6060), (4848, 5895), (5240, 5454)]