84239920

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{157}}^1\times {\mathrm{353}}^1$

素因数の和:542

約数の個数: 80

約数和(自身を含む): 208067040

約数和(自身を除く): 123827120

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 38, 40, 76, 80, 95, 152, 157, 190, 304, 314, 353, 380, 628, 706, 760, 785, 1256, 1412, 1520, 1570, 1765, 2512, 2824, 2983, 3140, 3530, 5648, 5966, 6280, 6707, 7060, 11932, 12560, 13414, 14120, 14915, 23864, 26828, 28240, 29830, 33535, 47728, 53656, 55421, 59660, 67070, 107312, 110842, 119320, 134140, 221684, 238640, 268280, 277105, 443368, 536560, 554210, 886736, 1052999, 1108420, 2105998, 2216840, 4211996, 4433680, 5264995, 8423992, 10529990, 16847984, 21059980, 42119960, 84239920]

約数ペア:

[(1, 84239920), (2, 42119960), (4, 21059980), (5, 16847984), (8, 10529990), (10, 8423992), (16, 5264995), (19, 4433680), (20, 4211996), (38, 2216840), (40, 2105998), (76, 1108420), (80, 1052999), (95, 886736), (152, 554210), (157, 536560), (190, 443368), (304, 277105), (314, 268280), (353, 238640), (380, 221684), (628, 134140), (706, 119320), (760, 110842), (785, 107312), (1256, 67070), (1412, 59660), (1520, 55421), (1570, 53656), (1765, 47728), (2512, 33535), (2824, 29830), (2983, 28240), (3140, 26828), (3530, 23864), (5648, 14915), (5966, 14120), (6280, 13414), (6707, 12560), (7060, 11932)]