7978880

素因数分解:

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

素因数の和:176

約数の個数: 128

約数和(自身を含む): 23647680

約数和(自身を除く): 15668800

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 16, 20, 26, 28, 32, 35, 40, 52, 56, 64, 65, 70, 80, 91, 104, 112, 128, 130, 137, 140, 160, 182, 208, 224, 260, 274, 280, 320, 364, 416, 448, 455, 520, 548, 560, 640, 685, 728, 832, 896, 910, 959, 1040, 1096, 1120, 1370, 1456, 1664, 1781, 1820, 1918, 2080, 2192, 2240, 2740, 2912, 3562, 3640, 3836, 4160, 4384, 4480, 4795, 5480, 5824, 7124, 7280, 7672, 8320, 8768, 8905, 9590, 10960, 11648, 12467, 14248, 14560, 15344, 17536, 17810, 19180, 21920, 24934, 28496, 29120, 30688, 35620, 38360, 43840, 49868, 56992, 58240, 61376, 62335, 71240, 76720, 87680, 99736, 113984, 122752, 124670, 142480, 153440, 199472, 227968, 249340, 284960, 306880, 398944, 498680, 569920, 613760, 797888, 997360, 1139840, 1595776, 1994720, 3989440, 7978880]

約数ペア:

[(1, 7978880), (2, 3989440), (4, 1994720), (5, 1595776), (7, 1139840), (8, 997360), (10, 797888), (13, 613760), (14, 569920), (16, 498680), (20, 398944), (26, 306880), (28, 284960), (32, 249340), (35, 227968), (40, 199472), (52, 153440), (56, 142480), (64, 124670), (65, 122752), (70, 113984), (80, 99736), (91, 87680), (104, 76720), (112, 71240), (128, 62335), (130, 61376), (137, 58240), (140, 56992), (160, 49868), (182, 43840), (208, 38360), (224, 35620), (260, 30688), (274, 29120), (280, 28496), (320, 24934), (364, 21920), (416, 19180), (448, 17810), (455, 17536), (520, 15344), (548, 14560), (560, 14248), (640, 12467), (685, 11648), (728, 10960), (832, 9590), (896, 8905), (910, 8768), (959, 8320), (1040, 7672), (1096, 7280), (1120, 7124), (1370, 5824), (1456, 5480), (1664, 4795), (1781, 4480), (1820, 4384), (1918, 4160), (2080, 3836), (2192, 3640), (2240, 3562), (2740, 2912)]