161220240

素因数分解:

$2^4\times 3^3\times 5^1\times {\mathrm{101}}^1\times {\mathrm{739}}^1$

素因数の和:862

約数の個数: 160

約数和(自身を含む): 561571200

約数和(自身を除く): 400350960

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, 135, 144, 180, 202, 216, 240, 270, 303, 360, 404, 432, 505, 540, 606, 720, 739, 808, 909, 1010, 1080, 1212, 1478, 1515, 1616, 1818, 2020, 2160, 2217, 2424, 2727, 2956, 3030, 3636, 3695, 4040, 4434, 4545, 4848, 5454, 5912, 6060, 6651, 7272, 7390, 8080, 8868, 9090, 10908, 11085, 11824, 12120, 13302, 13635, 14544, 14780, 17736, 18180, 19953, 21816, 22170, 24240, 26604, 27270, 29560, 33255, 35472, 36360, 39906, 43632, 44340, 53208, 54540, 59120, 66510, 72720, 74639, 79812, 88680, 99765, 106416, 109080, 133020, 149278, 159624, 177360, 199530, 218160, 223917, 266040, 298556, 319248, 373195, 399060, 447834, 532080, 597112, 671751, 746390, 798120, 895668, 1119585, 1194224, 1343502, 1492780, 1596240, 1791336, 2015253, 2239170, 2687004, 2985560, 3358755, 3582672, 4030506, 4478340, 5374008, 5971120, 6717510, 8061012, 8956680, 10076265, 10748016, 13435020, 16122024, 17913360, 20152530, 26870040, 32244048, 40305060, 53740080, 80610120, 161220240]

約数ペア:

[(1, 161220240), (2, 80610120), (3, 53740080), (4, 40305060), (5, 32244048), (6, 26870040), (8, 20152530), (9, 17913360), (10, 16122024), (12, 13435020), (15, 10748016), (16, 10076265), (18, 8956680), (20, 8061012), (24, 6717510), (27, 5971120), (30, 5374008), (36, 4478340), (40, 4030506), (45, 3582672), (48, 3358755), (54, 2985560), (60, 2687004), (72, 2239170), (80, 2015253), (90, 1791336), (101, 1596240), (108, 1492780), (120, 1343502), (135, 1194224), (144, 1119585), (180, 895668), (202, 798120), (216, 746390), (240, 671751), (270, 597112), (303, 532080), (360, 447834), (404, 399060), (432, 373195), (505, 319248), (540, 298556), (606, 266040), (720, 223917), (739, 218160), (808, 199530), (909, 177360), (1010, 159624), (1080, 149278), (1212, 133020), (1478, 109080), (1515, 106416), (1616, 99765), (1818, 88680), (2020, 79812), (2160, 74639), (2217, 72720), (2424, 66510), (2727, 59120), (2956, 54540), (3030, 53208), (3636, 44340), (3695, 43632), (4040, 39906), (4434, 36360), (4545, 35472), (4848, 33255), (5454, 29560), (5912, 27270), (6060, 26604), (6651, 24240), (7272, 22170), (7390, 21816), (8080, 19953), (8868, 18180), (9090, 17736), (10908, 14780), (11085, 14544), (11824, 13635), (12120, 13302)]