20012344940

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{491}}^1\times {\mathrm{10039}}^1$

素因数の和:10575

約数の個数: 96

約数和(自身を含む): 49791974400

約数和(自身を除く): 29779629460

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 29, 35, 58, 70, 116, 140, 145, 203, 290, 406, 491, 580, 812, 982, 1015, 1964, 2030, 2455, 3437, 4060, 4910, 6874, 9820, 10039, 13748, 14239, 17185, 20078, 28478, 34370, 40156, 50195, 56956, 68740, 70273, 71195, 99673, 100390, 140546, 142390, 199346, 200780, 281092, 284780, 291131, 351365, 398692, 498365, 582262, 702730, 996730, 1164524, 1405460, 1455655, 1993460, 2037917, 2911310, 4075834, 4929149, 5822620, 8151668, 9858298, 10189585, 19716596, 20379170, 24645745, 34504043, 40758340, 49291490, 69008086, 98582980, 138016172, 142945321, 172520215, 285890642, 345040430, 571781284, 690080860, 714726605, 1000617247, 1429453210, 2001234494, 2858906420, 4002468988, 5003086235, 10006172470, 20012344940]

約数ペア:

[(1, 20012344940), (2, 10006172470), (4, 5003086235), (5, 4002468988), (7, 2858906420), (10, 2001234494), (14, 1429453210), (20, 1000617247), (28, 714726605), (29, 690080860), (35, 571781284), (58, 345040430), (70, 285890642), (116, 172520215), (140, 142945321), (145, 138016172), (203, 98582980), (290, 69008086), (406, 49291490), (491, 40758340), (580, 34504043), (812, 24645745), (982, 20379170), (1015, 19716596), (1964, 10189585), (2030, 9858298), (2455, 8151668), (3437, 5822620), (4060, 4929149), (4910, 4075834), (6874, 2911310), (9820, 2037917), (10039, 1993460), (13748, 1455655), (14239, 1405460), (17185, 1164524), (20078, 996730), (28478, 702730), (34370, 582262), (40156, 498365), (50195, 398692), (56956, 351365), (68740, 291131), (70273, 284780), (71195, 281092), (99673, 200780), (100390, 199346), (140546, 142390)]