128945460

素因数分解:

$2^2\times 3^1\times 5^1\times 7^2\times {\mathrm{61}}^1\times {\mathrm{719}}^1$

素因数の和:806

約数の個数: 144

約数和(自身を含む): 427472640

約数和(自身を除く): 298527180

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 49, 60, 61, 70, 84, 98, 105, 122, 140, 147, 183, 196, 210, 244, 245, 294, 305, 366, 420, 427, 490, 588, 610, 719, 732, 735, 854, 915, 980, 1220, 1281, 1438, 1470, 1708, 1830, 2135, 2157, 2562, 2876, 2940, 2989, 3595, 3660, 4270, 4314, 5033, 5124, 5978, 6405, 7190, 8540, 8628, 8967, 10066, 10785, 11956, 12810, 14380, 14945, 15099, 17934, 20132, 21570, 25165, 25620, 29890, 30198, 35231, 35868, 43140, 43859, 44835, 50330, 59780, 60396, 70462, 75495, 87718, 89670, 100660, 105693, 131577, 140924, 150990, 175436, 176155, 179340, 211386, 219295, 263154, 301980, 307013, 352310, 422772, 438590, 526308, 528465, 614026, 657885, 704620, 877180, 921039, 1056930, 1228052, 1315770, 1535065, 1842078, 2113860, 2149091, 2631540, 3070130, 3684156, 4298182, 4605195, 6140260, 6447273, 8596364, 9210390, 10745455, 12894546, 18420780, 21490910, 25789092, 32236365, 42981820, 64472730, 128945460]

約数ペア:

[(1, 128945460), (2, 64472730), (3, 42981820), (4, 32236365), (5, 25789092), (6, 21490910), (7, 18420780), (10, 12894546), (12, 10745455), (14, 9210390), (15, 8596364), (20, 6447273), (21, 6140260), (28, 4605195), (30, 4298182), (35, 3684156), (42, 3070130), (49, 2631540), (60, 2149091), (61, 2113860), (70, 1842078), (84, 1535065), (98, 1315770), (105, 1228052), (122, 1056930), (140, 921039), (147, 877180), (183, 704620), (196, 657885), (210, 614026), (244, 528465), (245, 526308), (294, 438590), (305, 422772), (366, 352310), (420, 307013), (427, 301980), (490, 263154), (588, 219295), (610, 211386), (719, 179340), (732, 176155), (735, 175436), (854, 150990), (915, 140924), (980, 131577), (1220, 105693), (1281, 100660), (1438, 89670), (1470, 87718), (1708, 75495), (1830, 70462), (2135, 60396), (2157, 59780), (2562, 50330), (2876, 44835), (2940, 43859), (2989, 43140), (3595, 35868), (3660, 35231), (4270, 30198), (4314, 29890), (5033, 25620), (5124, 25165), (5978, 21570), (6405, 20132), (7190, 17934), (8540, 15099), (8628, 14945), (8967, 14380), (10066, 12810), (10785, 11956)]