6981520

素因数分解:

$2^4\times 5^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{137}}^1$

素因数の和:177

約数の個数: 120

約数和(自身を含む): 20483064

約数和(自身を除く): 13501544

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 16, 20, 26, 28, 35, 40, 49, 52, 56, 65, 70, 80, 91, 98, 104, 112, 130, 137, 140, 182, 196, 208, 245, 260, 274, 280, 364, 392, 455, 490, 520, 548, 560, 637, 685, 728, 784, 910, 959, 980, 1040, 1096, 1274, 1370, 1456, 1781, 1820, 1918, 1960, 2192, 2548, 2740, 3185, 3562, 3640, 3836, 3920, 4795, 5096, 5480, 6370, 6713, 7124, 7280, 7672, 8905, 9590, 10192, 10960, 12467, 12740, 13426, 14248, 15344, 17810, 19180, 24934, 25480, 26852, 28496, 33565, 35620, 38360, 49868, 50960, 53704, 62335, 67130, 71240, 76720, 87269, 99736, 107408, 124670, 134260, 142480, 174538, 199472, 249340, 268520, 349076, 436345, 498680, 537040, 698152, 872690, 997360, 1396304, 1745380, 3490760, 6981520]

約数ペア:

[(1, 6981520), (2, 3490760), (4, 1745380), (5, 1396304), (7, 997360), (8, 872690), (10, 698152), (13, 537040), (14, 498680), (16, 436345), (20, 349076), (26, 268520), (28, 249340), (35, 199472), (40, 174538), (49, 142480), (52, 134260), (56, 124670), (65, 107408), (70, 99736), (80, 87269), (91, 76720), (98, 71240), (104, 67130), (112, 62335), (130, 53704), (137, 50960), (140, 49868), (182, 38360), (196, 35620), (208, 33565), (245, 28496), (260, 26852), (274, 25480), (280, 24934), (364, 19180), (392, 17810), (455, 15344), (490, 14248), (520, 13426), (548, 12740), (560, 12467), (637, 10960), (685, 10192), (728, 9590), (784, 8905), (910, 7672), (959, 7280), (980, 7124), (1040, 6713), (1096, 6370), (1274, 5480), (1370, 5096), (1456, 4795), (1781, 3920), (1820, 3836), (1918, 3640), (1960, 3562), (2192, 3185), (2548, 2740)]