81840990

素因数分解:

$2^1\times 3^1\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{499}}^1$

素因数の和:598

約数の個数: 128

約数和(自身を含む): 248832000

約数和(自身を除く): 166991010

約数列:

[1, 2, 3, 5, 6, 7, 10, 11, 14, 15, 21, 22, 30, 33, 35, 42, 55, 66, 70, 71, 77, 105, 110, 142, 154, 165, 210, 213, 231, 330, 355, 385, 426, 462, 497, 499, 710, 770, 781, 994, 998, 1065, 1155, 1491, 1497, 1562, 2130, 2310, 2343, 2485, 2495, 2982, 2994, 3493, 3905, 4686, 4970, 4990, 5467, 5489, 6986, 7455, 7485, 7810, 10479, 10934, 10978, 11715, 14910, 14970, 16401, 16467, 17465, 20958, 23430, 27335, 27445, 32802, 32934, 34930, 35429, 38423, 52395, 54670, 54890, 70858, 76846, 82005, 82335, 104790, 106287, 115269, 164010, 164670, 177145, 192115, 212574, 230538, 248003, 354290, 384230, 389719, 496006, 531435, 576345, 744009, 779438, 1062870, 1152690, 1169157, 1240015, 1488018, 1948595, 2338314, 2480030, 2728033, 3720045, 3897190, 5456066, 5845785, 7440090, 8184099, 11691570, 13640165, 16368198, 27280330, 40920495, 81840990]

約数ペア:

[(1, 81840990), (2, 40920495), (3, 27280330), (5, 16368198), (6, 13640165), (7, 11691570), (10, 8184099), (11, 7440090), (14, 5845785), (15, 5456066), (21, 3897190), (22, 3720045), (30, 2728033), (33, 2480030), (35, 2338314), (42, 1948595), (55, 1488018), (66, 1240015), (70, 1169157), (71, 1152690), (77, 1062870), (105, 779438), (110, 744009), (142, 576345), (154, 531435), (165, 496006), (210, 389719), (213, 384230), (231, 354290), (330, 248003), (355, 230538), (385, 212574), (426, 192115), (462, 177145), (497, 164670), (499, 164010), (710, 115269), (770, 106287), (781, 104790), (994, 82335), (998, 82005), (1065, 76846), (1155, 70858), (1491, 54890), (1497, 54670), (1562, 52395), (2130, 38423), (2310, 35429), (2343, 34930), (2485, 32934), (2495, 32802), (2982, 27445), (2994, 27335), (3493, 23430), (3905, 20958), (4686, 17465), (4970, 16467), (4990, 16401), (5467, 14970), (5489, 14910), (6986, 11715), (7455, 10978), (7485, 10934), (7810, 10479)]