280707960

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{103}}^1\times {\mathrm{1747}}^1$

素因数の和:1877

約数の個数: 128

約数和(自身を含む): 916231680

約数和(自身を除く): 635523720

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 20, 24, 26, 30, 39, 40, 52, 60, 65, 78, 103, 104, 120, 130, 156, 195, 206, 260, 309, 312, 390, 412, 515, 520, 618, 780, 824, 1030, 1236, 1339, 1545, 1560, 1747, 2060, 2472, 2678, 3090, 3494, 4017, 4120, 5241, 5356, 6180, 6695, 6988, 8034, 8735, 10482, 10712, 12360, 13390, 13976, 16068, 17470, 20085, 20964, 22711, 26205, 26780, 32136, 34940, 40170, 41928, 45422, 52410, 53560, 68133, 69880, 80340, 90844, 104820, 113555, 136266, 160680, 179941, 181688, 209640, 227110, 272532, 340665, 359882, 454220, 539823, 545064, 681330, 719764, 899705, 908440, 1079646, 1362660, 1439528, 1799410, 2159292, 2339233, 2699115, 2725320, 3598820, 4318584, 4678466, 5398230, 7017699, 7197640, 9356932, 10796460, 11696165, 14035398, 18713864, 21592920, 23392330, 28070796, 35088495, 46784660, 56141592, 70176990, 93569320, 140353980, 280707960]

約数ペア:

[(1, 280707960), (2, 140353980), (3, 93569320), (4, 70176990), (5, 56141592), (6, 46784660), (8, 35088495), (10, 28070796), (12, 23392330), (13, 21592920), (15, 18713864), (20, 14035398), (24, 11696165), (26, 10796460), (30, 9356932), (39, 7197640), (40, 7017699), (52, 5398230), (60, 4678466), (65, 4318584), (78, 3598820), (103, 2725320), (104, 2699115), (120, 2339233), (130, 2159292), (156, 1799410), (195, 1439528), (206, 1362660), (260, 1079646), (309, 908440), (312, 899705), (390, 719764), (412, 681330), (515, 545064), (520, 539823), (618, 454220), (780, 359882), (824, 340665), (1030, 272532), (1236, 227110), (1339, 209640), (1545, 181688), (1560, 179941), (1747, 160680), (2060, 136266), (2472, 113555), (2678, 104820), (3090, 90844), (3494, 80340), (4017, 69880), (4120, 68133), (5241, 53560), (5356, 52410), (6180, 45422), (6695, 41928), (6988, 40170), (8034, 34940), (8735, 32136), (10482, 26780), (10712, 26205), (12360, 22711), (13390, 20964), (13976, 20085), (16068, 17470)]