1243992800

素因数分解:

$2^5\times 5^2\times {\mathrm{31}}^1\times {\mathrm{103}}^1\times {\mathrm{487}}^1$

素因数の和:641

約数の個数: 144

約数和(自身を含む): 3171796992

約数和(自身を除く): 1927804192

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 31, 32, 40, 50, 62, 80, 100, 103, 124, 155, 160, 200, 206, 248, 310, 400, 412, 487, 496, 515, 620, 775, 800, 824, 974, 992, 1030, 1240, 1550, 1648, 1948, 2060, 2435, 2480, 2575, 3100, 3193, 3296, 3896, 4120, 4870, 4960, 5150, 6200, 6386, 7792, 8240, 9740, 10300, 12175, 12400, 12772, 15097, 15584, 15965, 16480, 19480, 20600, 24350, 24800, 25544, 30194, 31930, 38960, 41200, 48700, 50161, 51088, 60388, 63860, 75485, 77920, 79825, 82400, 97400, 100322, 102176, 120776, 127720, 150970, 159650, 194800, 200644, 241552, 250805, 255440, 301940, 319300, 377425, 389600, 401288, 483104, 501610, 510880, 603880, 638600, 754850, 802576, 1003220, 1207760, 1254025, 1277200, 1509700, 1554991, 1605152, 2006440, 2415520, 2508050, 2554400, 3019400, 3109982, 4012880, 5016100, 6038800, 6219964, 7774955, 8025760, 10032200, 12077600, 12439928, 15549910, 20064400, 24879856, 31099820, 38874775, 40128800, 49759712, 62199640, 77749550, 124399280, 155499100, 248798560, 310998200, 621996400, 1243992800]

約数ペア:

[(1, 1243992800), (2, 621996400), (4, 310998200), (5, 248798560), (8, 155499100), (10, 124399280), (16, 77749550), (20, 62199640), (25, 49759712), (31, 40128800), (32, 38874775), (40, 31099820), (50, 24879856), (62, 20064400), (80, 15549910), (100, 12439928), (103, 12077600), (124, 10032200), (155, 8025760), (160, 7774955), (200, 6219964), (206, 6038800), (248, 5016100), (310, 4012880), (400, 3109982), (412, 3019400), (487, 2554400), (496, 2508050), (515, 2415520), (620, 2006440), (775, 1605152), (800, 1554991), (824, 1509700), (974, 1277200), (992, 1254025), (1030, 1207760), (1240, 1003220), (1550, 802576), (1648, 754850), (1948, 638600), (2060, 603880), (2435, 510880), (2480, 501610), (2575, 483104), (3100, 401288), (3193, 389600), (3296, 377425), (3896, 319300), (4120, 301940), (4870, 255440), (4960, 250805), (5150, 241552), (6200, 200644), (6386, 194800), (7792, 159650), (8240, 150970), (9740, 127720), (10300, 120776), (12175, 102176), (12400, 100322), (12772, 97400), (15097, 82400), (15584, 79825), (15965, 77920), (16480, 75485), (19480, 63860), (20600, 60388), (24350, 51088), (24800, 50161), (25544, 48700), (30194, 41200), (31930, 38960)]