19975830

素因数分解:

$2^1\times 3^1\times 5^1\times 7^2\times {\mathrm{107}}^1\times {\mathrm{127}}^1$

素因数の和:258

約数の個数: 96

約数和(自身を含む): 56733696

約数和(自身を除く): 36757866

約数列:

[1, 2, 3, 5, 6, 7, 10, 14, 15, 21, 30, 35, 42, 49, 70, 98, 105, 107, 127, 147, 210, 214, 245, 254, 294, 321, 381, 490, 535, 635, 642, 735, 749, 762, 889, 1070, 1270, 1470, 1498, 1605, 1778, 1905, 2247, 2667, 3210, 3745, 3810, 4445, 4494, 5243, 5334, 6223, 7490, 8890, 10486, 11235, 12446, 13335, 13589, 15729, 18669, 22470, 26215, 26670, 27178, 31115, 31458, 37338, 40767, 52430, 62230, 67945, 78645, 81534, 93345, 95123, 135890, 157290, 186690, 190246, 203835, 285369, 407670, 475615, 570738, 665861, 951230, 1331722, 1426845, 1997583, 2853690, 3329305, 3995166, 6658610, 9987915, 19975830]

約数ペア:

[(1, 19975830), (2, 9987915), (3, 6658610), (5, 3995166), (6, 3329305), (7, 2853690), (10, 1997583), (14, 1426845), (15, 1331722), (21, 951230), (30, 665861), (35, 570738), (42, 475615), (49, 407670), (70, 285369), (98, 203835), (105, 190246), (107, 186690), (127, 157290), (147, 135890), (210, 95123), (214, 93345), (245, 81534), (254, 78645), (294, 67945), (321, 62230), (381, 52430), (490, 40767), (535, 37338), (635, 31458), (642, 31115), (735, 27178), (749, 26670), (762, 26215), (889, 22470), (1070, 18669), (1270, 15729), (1470, 13589), (1498, 13335), (1605, 12446), (1778, 11235), (1905, 10486), (2247, 8890), (2667, 7490), (3210, 6223), (3745, 5334), (3810, 5243), (4445, 4494)]