281563280

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{71}}^1\times {\mathrm{2609}}^1$

素因数の和:2712

約数の個数: 80

約数和(自身を含む): 699062400

約数和(自身を除く): 417499120

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 38, 40, 71, 76, 80, 95, 142, 152, 190, 284, 304, 355, 380, 568, 710, 760, 1136, 1349, 1420, 1520, 2609, 2698, 2840, 5218, 5396, 5680, 6745, 10436, 10792, 13045, 13490, 20872, 21584, 26090, 26980, 41744, 49571, 52180, 53960, 99142, 104360, 107920, 185239, 198284, 208720, 247855, 370478, 396568, 495710, 740956, 793136, 926195, 991420, 1481912, 1852390, 1982840, 2963824, 3519541, 3704780, 3965680, 7039082, 7409560, 14078164, 14819120, 17597705, 28156328, 35195410, 56312656, 70390820, 140781640, 281563280]

約数ペア:

[(1, 281563280), (2, 140781640), (4, 70390820), (5, 56312656), (8, 35195410), (10, 28156328), (16, 17597705), (19, 14819120), (20, 14078164), (38, 7409560), (40, 7039082), (71, 3965680), (76, 3704780), (80, 3519541), (95, 2963824), (142, 1982840), (152, 1852390), (190, 1481912), (284, 991420), (304, 926195), (355, 793136), (380, 740956), (568, 495710), (710, 396568), (760, 370478), (1136, 247855), (1349, 208720), (1420, 198284), (1520, 185239), (2609, 107920), (2698, 104360), (2840, 99142), (5218, 53960), (5396, 52180), (5680, 49571), (6745, 41744), (10436, 26980), (10792, 26090), (13045, 21584), (13490, 20872)]