253809220

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{317}}^1$

素因数の和:402

約数の個数: 144

約数和(自身を含む): 669936960

約数和(自身を除く): 416127740

約数列:

[1, 2, 4, 5, 7, 10, 14, 19, 20, 28, 35, 38, 43, 49, 70, 76, 86, 95, 98, 133, 140, 172, 190, 196, 215, 245, 266, 301, 317, 380, 430, 490, 532, 602, 634, 665, 817, 860, 931, 980, 1204, 1268, 1330, 1505, 1585, 1634, 1862, 2107, 2219, 2660, 3010, 3170, 3268, 3724, 4085, 4214, 4438, 4655, 5719, 6020, 6023, 6340, 8170, 8428, 8876, 9310, 10535, 11095, 11438, 12046, 13631, 15533, 16340, 18620, 21070, 22190, 22876, 24092, 27262, 28595, 30115, 31066, 40033, 42140, 42161, 44380, 54524, 57190, 60230, 62132, 68155, 77665, 80066, 84322, 95417, 114380, 120460, 136310, 155330, 160132, 168644, 190834, 200165, 210805, 258989, 272620, 295127, 310660, 381668, 400330, 421610, 477085, 517978, 590254, 667919, 800660, 843220, 954170, 1035956, 1180508, 1294945, 1335838, 1475635, 1812923, 1908340, 2589890, 2671676, 2951270, 3339595, 3625846, 5179780, 5902540, 6679190, 7251692, 9064615, 12690461, 13358380, 18129230, 25380922, 36258460, 50761844, 63452305, 126904610, 253809220]

約数ペア:

[(1, 253809220), (2, 126904610), (4, 63452305), (5, 50761844), (7, 36258460), (10, 25380922), (14, 18129230), (19, 13358380), (20, 12690461), (28, 9064615), (35, 7251692), (38, 6679190), (43, 5902540), (49, 5179780), (70, 3625846), (76, 3339595), (86, 2951270), (95, 2671676), (98, 2589890), (133, 1908340), (140, 1812923), (172, 1475635), (190, 1335838), (196, 1294945), (215, 1180508), (245, 1035956), (266, 954170), (301, 843220), (317, 800660), (380, 667919), (430, 590254), (490, 517978), (532, 477085), (602, 421610), (634, 400330), (665, 381668), (817, 310660), (860, 295127), (931, 272620), (980, 258989), (1204, 210805), (1268, 200165), (1330, 190834), (1505, 168644), (1585, 160132), (1634, 155330), (1862, 136310), (2107, 120460), (2219, 114380), (2660, 95417), (3010, 84322), (3170, 80066), (3268, 77665), (3724, 68155), (4085, 62132), (4214, 60230), (4438, 57190), (4655, 54524), (5719, 44380), (6020, 42161), (6023, 42140), (6340, 40033), (8170, 31066), (8428, 30115), (8876, 28595), (9310, 27262), (10535, 24092), (11095, 22876), (11438, 22190), (12046, 21070), (13631, 18620), (15533, 16340)]