20759492080

素因数分解:

$2^4\times 5^1\times {\mathrm{89}}^1\times {\mathrm{151}}^1\times {\mathrm{19309}}^1$

素因数の和:19562

約数の個数: 80

約数和(自身を含む): 49133908800

約数和(自身を除く): 28374416720

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 89, 151, 178, 302, 356, 445, 604, 712, 755, 890, 1208, 1424, 1510, 1780, 2416, 3020, 3560, 6040, 7120, 12080, 13439, 19309, 26878, 38618, 53756, 67195, 77236, 96545, 107512, 134390, 154472, 193090, 215024, 268780, 308944, 386180, 537560, 772360, 1075120, 1544720, 1718501, 2915659, 3437002, 5831318, 6874004, 8592505, 11662636, 13748008, 14578295, 17185010, 23325272, 27496016, 29156590, 34370020, 46650544, 58313180, 68740040, 116626360, 137480080, 233252720, 259493651, 518987302, 1037974604, 1297468255, 2075949208, 2594936510, 4151898416, 5189873020, 10379746040, 20759492080]

約数ペア:

[(1, 20759492080), (2, 10379746040), (4, 5189873020), (5, 4151898416), (8, 2594936510), (10, 2075949208), (16, 1297468255), (20, 1037974604), (40, 518987302), (80, 259493651), (89, 233252720), (151, 137480080), (178, 116626360), (302, 68740040), (356, 58313180), (445, 46650544), (604, 34370020), (712, 29156590), (755, 27496016), (890, 23325272), (1208, 17185010), (1424, 14578295), (1510, 13748008), (1780, 11662636), (2416, 8592505), (3020, 6874004), (3560, 5831318), (6040, 3437002), (7120, 2915659), (12080, 1718501), (13439, 1544720), (19309, 1075120), (26878, 772360), (38618, 537560), (53756, 386180), (67195, 308944), (77236, 268780), (96545, 215024), (107512, 193090), (134390, 154472)]