30921240

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{131}}^1\times {\mathrm{281}}^1$

素因数の和:433

約数の個数: 128

約数和(自身を含む): 107205120

約数和(自身を除く): 76283880

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 56, 60, 70, 84, 105, 120, 131, 140, 168, 210, 262, 280, 281, 393, 420, 524, 562, 655, 786, 840, 843, 917, 1048, 1124, 1310, 1405, 1572, 1686, 1834, 1965, 1967, 2248, 2620, 2751, 2810, 3144, 3372, 3668, 3930, 3934, 4215, 4585, 5240, 5502, 5620, 5901, 6744, 7336, 7860, 7868, 8430, 9170, 9835, 11004, 11240, 11802, 13755, 15720, 15736, 16860, 18340, 19670, 22008, 23604, 27510, 29505, 33720, 36680, 36811, 39340, 47208, 55020, 59010, 73622, 78680, 110040, 110433, 118020, 147244, 184055, 220866, 236040, 257677, 294488, 368110, 441732, 515354, 552165, 736220, 773031, 883464, 1030708, 1104330, 1288385, 1472440, 1546062, 2061416, 2208660, 2576770, 3092124, 3865155, 4417320, 5153540, 6184248, 7730310, 10307080, 15460620, 30921240]

約数ペア:

[(1, 30921240), (2, 15460620), (3, 10307080), (4, 7730310), (5, 6184248), (6, 5153540), (7, 4417320), (8, 3865155), (10, 3092124), (12, 2576770), (14, 2208660), (15, 2061416), (20, 1546062), (21, 1472440), (24, 1288385), (28, 1104330), (30, 1030708), (35, 883464), (40, 773031), (42, 736220), (56, 552165), (60, 515354), (70, 441732), (84, 368110), (105, 294488), (120, 257677), (131, 236040), (140, 220866), (168, 184055), (210, 147244), (262, 118020), (280, 110433), (281, 110040), (393, 78680), (420, 73622), (524, 59010), (562, 55020), (655, 47208), (786, 39340), (840, 36811), (843, 36680), (917, 33720), (1048, 29505), (1124, 27510), (1310, 23604), (1405, 22008), (1572, 19670), (1686, 18340), (1834, 16860), (1965, 15736), (1967, 15720), (2248, 13755), (2620, 11802), (2751, 11240), (2810, 11004), (3144, 9835), (3372, 9170), (3668, 8430), (3930, 7868), (3934, 7860), (4215, 7336), (4585, 6744), (5240, 5901), (5502, 5620)]