400019508

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{787}}^1\times {\mathrm{2017}}^1$

素因数の和:2821

約数の個数: 72

約数和(自身を含む): 1157653952

約数和(自身を除く): 757634444

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 28, 36, 42, 63, 84, 126, 252, 787, 1574, 2017, 2361, 3148, 4034, 4722, 5509, 6051, 7083, 8068, 9444, 11018, 12102, 14119, 14166, 16527, 18153, 22036, 24204, 28238, 28332, 33054, 36306, 42357, 49581, 56476, 66108, 72612, 84714, 99162, 127071, 169428, 198324, 254142, 508284, 1587379, 3174758, 4762137, 6349516, 9524274, 11111653, 14286411, 19048548, 22223306, 28572822, 33334959, 44446612, 57145644, 66669918, 100004877, 133339836, 200009754, 400019508]

約数ペア:

[(1, 400019508), (2, 200009754), (3, 133339836), (4, 100004877), (6, 66669918), (7, 57145644), (9, 44446612), (12, 33334959), (14, 28572822), (18, 22223306), (21, 19048548), (28, 14286411), (36, 11111653), (42, 9524274), (63, 6349516), (84, 4762137), (126, 3174758), (252, 1587379), (787, 508284), (1574, 254142), (2017, 198324), (2361, 169428), (3148, 127071), (4034, 99162), (4722, 84714), (5509, 72612), (6051, 66108), (7083, 56476), (8068, 49581), (9444, 42357), (11018, 36306), (12102, 33054), (14119, 28332), (14166, 28238), (16527, 24204), (18153, 22036)]