51646840

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{139}}^1\times {\mathrm{1327}}^1$

素因数の和:1484

約数の個数: 64

約数和(自身を含む): 133862400

約数和(自身を除く): 82215560

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 139, 140, 278, 280, 556, 695, 973, 1112, 1327, 1390, 1946, 2654, 2780, 3892, 4865, 5308, 5560, 6635, 7784, 9289, 9730, 10616, 13270, 18578, 19460, 26540, 37156, 38920, 46445, 53080, 74312, 92890, 184453, 185780, 368906, 371560, 737812, 922265, 1291171, 1475624, 1844530, 2582342, 3689060, 5164684, 6455855, 7378120, 10329368, 12911710, 25823420, 51646840]

約数ペア:

[(1, 51646840), (2, 25823420), (4, 12911710), (5, 10329368), (7, 7378120), (8, 6455855), (10, 5164684), (14, 3689060), (20, 2582342), (28, 1844530), (35, 1475624), (40, 1291171), (56, 922265), (70, 737812), (139, 371560), (140, 368906), (278, 185780), (280, 184453), (556, 92890), (695, 74312), (973, 53080), (1112, 46445), (1327, 38920), (1390, 37156), (1946, 26540), (2654, 19460), (2780, 18578), (3892, 13270), (4865, 10616), (5308, 9730), (5560, 9289), (6635, 7784)]