81540008

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{79}}^1\times {\mathrm{317}}^1$

素因数の和:450

約数の個数: 64

約数和(自身を含む): 174009600

約数和(自身を除く): 92469592

約数列:

[1, 2, 4, 8, 11, 22, 37, 44, 74, 79, 88, 148, 158, 296, 316, 317, 407, 632, 634, 814, 869, 1268, 1628, 1738, 2536, 2923, 3256, 3476, 3487, 5846, 6952, 6974, 11692, 11729, 13948, 23384, 23458, 25043, 27896, 32153, 46916, 50086, 64306, 93832, 100172, 128612, 129019, 200344, 257224, 258038, 275473, 516076, 550946, 926591, 1032152, 1101892, 1853182, 2203784, 3706364, 7412728, 10192501, 20385002, 40770004, 81540008]

約数ペア:

[(1, 81540008), (2, 40770004), (4, 20385002), (8, 10192501), (11, 7412728), (22, 3706364), (37, 2203784), (44, 1853182), (74, 1101892), (79, 1032152), (88, 926591), (148, 550946), (158, 516076), (296, 275473), (316, 258038), (317, 257224), (407, 200344), (632, 129019), (634, 128612), (814, 100172), (869, 93832), (1268, 64306), (1628, 50086), (1738, 46916), (2536, 32153), (2923, 27896), (3256, 25043), (3476, 23458), (3487, 23384), (5846, 13948), (6952, 11729), (6974, 11692)]