78738920

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{2857}}^1$

素因数の和:2934

約数の個数: 64

約数和(自身を含む): 194458320

約数和(自身を除く): 115719400

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 53, 65, 104, 106, 130, 212, 260, 265, 424, 520, 530, 689, 1060, 1378, 2120, 2756, 2857, 3445, 5512, 5714, 6890, 11428, 13780, 14285, 22856, 27560, 28570, 37141, 57140, 74282, 114280, 148564, 151421, 185705, 297128, 302842, 371410, 605684, 742820, 757105, 1211368, 1485640, 1514210, 1968473, 3028420, 3936946, 6056840, 7873892, 9842365, 15747784, 19684730, 39369460, 78738920]

約数ペア:

[(1, 78738920), (2, 39369460), (4, 19684730), (5, 15747784), (8, 9842365), (10, 7873892), (13, 6056840), (20, 3936946), (26, 3028420), (40, 1968473), (52, 1514210), (53, 1485640), (65, 1211368), (104, 757105), (106, 742820), (130, 605684), (212, 371410), (260, 302842), (265, 297128), (424, 185705), (520, 151421), (530, 148564), (689, 114280), (1060, 74282), (1378, 57140), (2120, 37141), (2756, 28570), (2857, 27560), (3445, 22856), (5512, 14285), (5714, 13780), (6890, 11428)]