77987280

素因数分解:

$2^4\times 3^1\times 5^1\times 7^1\times {\mathrm{61}}^1\times {\mathrm{761}}^1$

素因数の和:845

約数の個数: 160

約数和(自身を含む): 281196288

約数和(自身を除く): 203209008

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 35, 40, 42, 48, 56, 60, 61, 70, 80, 84, 105, 112, 120, 122, 140, 168, 183, 210, 240, 244, 280, 305, 336, 366, 420, 427, 488, 560, 610, 732, 761, 840, 854, 915, 976, 1220, 1281, 1464, 1522, 1680, 1708, 1830, 2135, 2283, 2440, 2562, 2928, 3044, 3416, 3660, 3805, 4270, 4566, 4880, 5124, 5327, 6088, 6405, 6832, 7320, 7610, 8540, 9132, 10248, 10654, 11415, 12176, 12810, 14640, 15220, 15981, 17080, 18264, 20496, 21308, 22830, 25620, 26635, 30440, 31962, 34160, 36528, 42616, 45660, 46421, 51240, 53270, 60880, 63924, 79905, 85232, 91320, 92842, 102480, 106540, 127848, 139263, 159810, 182640, 185684, 213080, 232105, 255696, 278526, 319620, 324947, 371368, 426160, 464210, 557052, 639240, 649894, 696315, 742736, 928420, 974841, 1114104, 1278480, 1299788, 1392630, 1624735, 1856840, 1949682, 2228208, 2599576, 2785260, 3249470, 3713680, 3899364, 4874205, 5199152, 5570520, 6498940, 7798728, 9748410, 11141040, 12997880, 15597456, 19496820, 25995760, 38993640, 77987280]

約数ペア:

[(1, 77987280), (2, 38993640), (3, 25995760), (4, 19496820), (5, 15597456), (6, 12997880), (7, 11141040), (8, 9748410), (10, 7798728), (12, 6498940), (14, 5570520), (15, 5199152), (16, 4874205), (20, 3899364), (21, 3713680), (24, 3249470), (28, 2785260), (30, 2599576), (35, 2228208), (40, 1949682), (42, 1856840), (48, 1624735), (56, 1392630), (60, 1299788), (61, 1278480), (70, 1114104), (80, 974841), (84, 928420), (105, 742736), (112, 696315), (120, 649894), (122, 639240), (140, 557052), (168, 464210), (183, 426160), (210, 371368), (240, 324947), (244, 319620), (280, 278526), (305, 255696), (336, 232105), (366, 213080), (420, 185684), (427, 182640), (488, 159810), (560, 139263), (610, 127848), (732, 106540), (761, 102480), (840, 92842), (854, 91320), (915, 85232), (976, 79905), (1220, 63924), (1281, 60880), (1464, 53270), (1522, 51240), (1680, 46421), (1708, 45660), (1830, 42616), (2135, 36528), (2283, 34160), (2440, 31962), (2562, 30440), (2928, 26635), (3044, 25620), (3416, 22830), (3660, 21308), (3805, 20496), (4270, 18264), (4566, 17080), (4880, 15981), (5124, 15220), (5327, 14640), (6088, 12810), (6405, 12176), (6832, 11415), (7320, 10654), (7610, 10248), (8540, 9132)]