87213880

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{367}}^1\times {\mathrm{457}}^1$

素因数の和:848

約数の個数: 64

約数和(自身を含む): 212365440

約数和(自身を除く): 125151560

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 367, 457, 520, 734, 914, 1468, 1828, 1835, 2285, 2936, 3656, 3670, 4570, 4771, 5941, 7340, 9140, 9542, 11882, 14680, 18280, 19084, 23764, 23855, 29705, 38168, 47528, 47710, 59410, 95420, 118820, 167719, 190840, 237640, 335438, 670876, 838595, 1341752, 1677190, 2180347, 3354380, 4360694, 6708760, 8721388, 10901735, 17442776, 21803470, 43606940, 87213880]

約数ペア:

[(1, 87213880), (2, 43606940), (4, 21803470), (5, 17442776), (8, 10901735), (10, 8721388), (13, 6708760), (20, 4360694), (26, 3354380), (40, 2180347), (52, 1677190), (65, 1341752), (104, 838595), (130, 670876), (260, 335438), (367, 237640), (457, 190840), (520, 167719), (734, 118820), (914, 95420), (1468, 59410), (1828, 47710), (1835, 47528), (2285, 38168), (2936, 29705), (3656, 23855), (3670, 23764), (4570, 19084), (4771, 18280), (5941, 14680), (7340, 11882), (9140, 9542)]