77440720

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{61}}^1\times {\mathrm{2267}}^1$

素因数の和:2348

約数の個数: 80

約数和(自身を含む): 209236608

約数和(自身を除く): 131795888

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 61, 70, 80, 112, 122, 140, 244, 280, 305, 427, 488, 560, 610, 854, 976, 1220, 1708, 2135, 2267, 2440, 3416, 4270, 4534, 4880, 6832, 8540, 9068, 11335, 15869, 17080, 18136, 22670, 31738, 34160, 36272, 45340, 63476, 79345, 90680, 126952, 138287, 158690, 181360, 253904, 276574, 317380, 553148, 634760, 691435, 968009, 1106296, 1269520, 1382870, 1936018, 2212592, 2765740, 3872036, 4840045, 5531480, 7744072, 9680090, 11062960, 15488144, 19360180, 38720360, 77440720]

約数ペア:

[(1, 77440720), (2, 38720360), (4, 19360180), (5, 15488144), (7, 11062960), (8, 9680090), (10, 7744072), (14, 5531480), (16, 4840045), (20, 3872036), (28, 2765740), (35, 2212592), (40, 1936018), (56, 1382870), (61, 1269520), (70, 1106296), (80, 968009), (112, 691435), (122, 634760), (140, 553148), (244, 317380), (280, 276574), (305, 253904), (427, 181360), (488, 158690), (560, 138287), (610, 126952), (854, 90680), (976, 79345), (1220, 63476), (1708, 45340), (2135, 36272), (2267, 34160), (2440, 31738), (3416, 22670), (4270, 18136), (4534, 17080), (4880, 15869), (6832, 11335), (8540, 9068)]