71338840

素因数分解:

$2^3\times 5^1\times {\mathrm{29}}^1\times {\mathrm{89}}^1\times {\mathrm{691}}^1$

素因数の和:820

約数の個数: 64

約数和(自身を含む): 168156000

約数和(自身を除く): 96817160

約数列:

[1, 2, 4, 5, 8, 10, 20, 29, 40, 58, 89, 116, 145, 178, 232, 290, 356, 445, 580, 691, 712, 890, 1160, 1382, 1780, 2581, 2764, 3455, 3560, 5162, 5528, 6910, 10324, 12905, 13820, 20039, 20648, 25810, 27640, 40078, 51620, 61499, 80156, 100195, 103240, 122998, 160312, 200390, 245996, 307495, 400780, 491992, 614990, 801560, 1229980, 1783471, 2459960, 3566942, 7133884, 8917355, 14267768, 17834710, 35669420, 71338840]

約数ペア:

[(1, 71338840), (2, 35669420), (4, 17834710), (5, 14267768), (8, 8917355), (10, 7133884), (20, 3566942), (29, 2459960), (40, 1783471), (58, 1229980), (89, 801560), (116, 614990), (145, 491992), (178, 400780), (232, 307495), (290, 245996), (356, 200390), (445, 160312), (580, 122998), (691, 103240), (712, 100195), (890, 80156), (1160, 61499), (1382, 51620), (1780, 40078), (2581, 27640), (2764, 25810), (3455, 20648), (3560, 20039), (5162, 13820), (5528, 12905), (6910, 10324)]