20293140

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{2543}}^1$

素因数の和:2581

約数の個数: 96

約数和(自身を含む): 68382720

約数和(自身を除く): 48089580

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 19, 20, 21, 28, 30, 35, 38, 42, 57, 60, 70, 76, 84, 95, 105, 114, 133, 140, 190, 210, 228, 266, 285, 380, 399, 420, 532, 570, 665, 798, 1140, 1330, 1596, 1995, 2543, 2660, 3990, 5086, 7629, 7980, 10172, 12715, 15258, 17801, 25430, 30516, 35602, 38145, 48317, 50860, 53403, 71204, 76290, 89005, 96634, 106806, 144951, 152580, 178010, 193268, 213612, 241585, 267015, 289902, 338219, 356020, 483170, 534030, 579804, 676438, 724755, 966340, 1014657, 1068060, 1352876, 1449510, 1691095, 2029314, 2899020, 3382190, 4058628, 5073285, 6764380, 10146570, 20293140]

約数ペア:

[(1, 20293140), (2, 10146570), (3, 6764380), (4, 5073285), (5, 4058628), (6, 3382190), (7, 2899020), (10, 2029314), (12, 1691095), (14, 1449510), (15, 1352876), (19, 1068060), (20, 1014657), (21, 966340), (28, 724755), (30, 676438), (35, 579804), (38, 534030), (42, 483170), (57, 356020), (60, 338219), (70, 289902), (76, 267015), (84, 241585), (95, 213612), (105, 193268), (114, 178010), (133, 152580), (140, 144951), (190, 106806), (210, 96634), (228, 89005), (266, 76290), (285, 71204), (380, 53403), (399, 50860), (420, 48317), (532, 38145), (570, 35602), (665, 30516), (798, 25430), (1140, 17801), (1330, 15258), (1596, 12715), (1995, 10172), (2543, 7980), (2660, 7629), (3990, 5086)]