18777746300

素因数分解:

$2^2\times 5^2\times {\mathrm{53}}^1\times {\mathrm{71}}^1\times {\mathrm{139}}^1\times {\mathrm{359}}^1$

素因数の和:636

約数の個数: 144

約数和(自身を含む): 42522278400

約数和(自身を除く): 23744532100

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 53, 71, 100, 106, 139, 142, 212, 265, 278, 284, 355, 359, 530, 556, 695, 710, 718, 1060, 1325, 1390, 1420, 1436, 1775, 1795, 2650, 2780, 3475, 3550, 3590, 3763, 5300, 6950, 7100, 7180, 7367, 7526, 8975, 9869, 13900, 14734, 15052, 17950, 18815, 19027, 19738, 25489, 29468, 35900, 36835, 37630, 38054, 39476, 49345, 49901, 50978, 73670, 75260, 76108, 94075, 95135, 98690, 99802, 101956, 127445, 147340, 184175, 188150, 190270, 197380, 199604, 246725, 249505, 254890, 368350, 376300, 380540, 475675, 493450, 499010, 509780, 523057, 637225, 736700, 951350, 986900, 998020, 1046114, 1247525, 1274450, 1350917, 1902700, 2092228, 2495050, 2548900, 2615285, 2644753, 2701834, 3542971, 4990100, 5230570, 5289506, 5403668, 6754585, 7085942, 10461140, 10579012, 13076425, 13223765, 13509170, 14171884, 17714855, 26152850, 26447530, 27018340, 33772925, 35429710, 52305700, 52895060, 66118825, 67545850, 70859420, 88574275, 132237650, 135091700, 177148550, 187777463, 264475300, 354297100, 375554926, 751109852, 938887315, 1877774630, 3755549260, 4694436575, 9388873150, 18777746300]

約数ペア:

[(1, 18777746300), (2, 9388873150), (4, 4694436575), (5, 3755549260), (10, 1877774630), (20, 938887315), (25, 751109852), (50, 375554926), (53, 354297100), (71, 264475300), (100, 187777463), (106, 177148550), (139, 135091700), (142, 132237650), (212, 88574275), (265, 70859420), (278, 67545850), (284, 66118825), (355, 52895060), (359, 52305700), (530, 35429710), (556, 33772925), (695, 27018340), (710, 26447530), (718, 26152850), (1060, 17714855), (1325, 14171884), (1390, 13509170), (1420, 13223765), (1436, 13076425), (1775, 10579012), (1795, 10461140), (2650, 7085942), (2780, 6754585), (3475, 5403668), (3550, 5289506), (3590, 5230570), (3763, 4990100), (5300, 3542971), (6950, 2701834), (7100, 2644753), (7180, 2615285), (7367, 2548900), (7526, 2495050), (8975, 2092228), (9869, 1902700), (13900, 1350917), (14734, 1274450), (15052, 1247525), (17950, 1046114), (18815, 998020), (19027, 986900), (19738, 951350), (25489, 736700), (29468, 637225), (35900, 523057), (36835, 509780), (37630, 499010), (38054, 493450), (39476, 475675), (49345, 380540), (49901, 376300), (50978, 368350), (73670, 254890), (75260, 249505), (76108, 246725), (94075, 199604), (95135, 197380), (98690, 190270), (99802, 188150), (101956, 184175), (127445, 147340)]