77887810

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{251}}^1$

素因数の和:320

約数の個数: 128

約数和(自身を含む): 195084288

約数和(自身を除く): 117196478

約数列:

[1, 2, 5, 7, 10, 11, 13, 14, 22, 26, 31, 35, 55, 62, 65, 70, 77, 91, 110, 130, 143, 154, 155, 182, 217, 251, 286, 310, 341, 385, 403, 434, 455, 502, 682, 715, 770, 806, 910, 1001, 1085, 1255, 1430, 1705, 1757, 2002, 2015, 2170, 2387, 2510, 2761, 2821, 3263, 3410, 3514, 4030, 4433, 4774, 5005, 5522, 5642, 6526, 7781, 8785, 8866, 10010, 11935, 13805, 14105, 15562, 16315, 17570, 19327, 22165, 22841, 23870, 27610, 28210, 31031, 32630, 35893, 38654, 38905, 44330, 45682, 54467, 62062, 71786, 77810, 85591, 96635, 101153, 108934, 114205, 155155, 171182, 179465, 193270, 202306, 228410, 251251, 272335, 310310, 358930, 427955, 502502, 505765, 544670, 599137, 708071, 855910, 1011530, 1112683, 1198274, 1256255, 1416142, 2225366, 2512510, 2995685, 3540355, 5563415, 5991370, 7080710, 7788781, 11126830, 15577562, 38943905, 77887810]

約数ペア:

[(1, 77887810), (2, 38943905), (5, 15577562), (7, 11126830), (10, 7788781), (11, 7080710), (13, 5991370), (14, 5563415), (22, 3540355), (26, 2995685), (31, 2512510), (35, 2225366), (55, 1416142), (62, 1256255), (65, 1198274), (70, 1112683), (77, 1011530), (91, 855910), (110, 708071), (130, 599137), (143, 544670), (154, 505765), (155, 502502), (182, 427955), (217, 358930), (251, 310310), (286, 272335), (310, 251251), (341, 228410), (385, 202306), (403, 193270), (434, 179465), (455, 171182), (502, 155155), (682, 114205), (715, 108934), (770, 101153), (806, 96635), (910, 85591), (1001, 77810), (1085, 71786), (1255, 62062), (1430, 54467), (1705, 45682), (1757, 44330), (2002, 38905), (2015, 38654), (2170, 35893), (2387, 32630), (2510, 31031), (2761, 28210), (2821, 27610), (3263, 23870), (3410, 22841), (3514, 22165), (4030, 19327), (4433, 17570), (4774, 16315), (5005, 15562), (5522, 14105), (5642, 13805), (6526, 11935), (7781, 10010), (8785, 8866)]