71398960

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{107}}^1\times {\mathrm{439}}^1$

素因数の和:578

約数の個数: 80

約数和(自身を含む): 176774400

約数和(自身を除く): 105375440

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 38, 40, 76, 80, 95, 107, 152, 190, 214, 304, 380, 428, 439, 535, 760, 856, 878, 1070, 1520, 1712, 1756, 2033, 2140, 2195, 3512, 4066, 4280, 4390, 7024, 8132, 8341, 8560, 8780, 10165, 16264, 16682, 17560, 20330, 32528, 33364, 35120, 40660, 41705, 46973, 66728, 81320, 83410, 93946, 133456, 162640, 166820, 187892, 234865, 333640, 375784, 469730, 667280, 751568, 892487, 939460, 1784974, 1878920, 3569948, 3757840, 4462435, 7139896, 8924870, 14279792, 17849740, 35699480, 71398960]

約数ペア:

[(1, 71398960), (2, 35699480), (4, 17849740), (5, 14279792), (8, 8924870), (10, 7139896), (16, 4462435), (19, 3757840), (20, 3569948), (38, 1878920), (40, 1784974), (76, 939460), (80, 892487), (95, 751568), (107, 667280), (152, 469730), (190, 375784), (214, 333640), (304, 234865), (380, 187892), (428, 166820), (439, 162640), (535, 133456), (760, 93946), (856, 83410), (878, 81320), (1070, 66728), (1520, 46973), (1712, 41705), (1756, 40660), (2033, 35120), (2140, 33364), (2195, 32528), (3512, 20330), (4066, 17560), (4280, 16682), (4390, 16264), (7024, 10165), (8132, 8780), (8341, 8560)]