27990460

素因数分解:

$2^2\times 5^1\times {\mathrm{61}}^1\times {\mathrm{22943}}^1$

素因数の和:23013

約数の個数: 24

約数和(自身を含む): 59746176

約数和(自身を除く): 31755716

約数列:

[1, 2, 4, 5, 10, 20, 61, 122, 244, 305, 610, 1220, 22943, 45886, 91772, 114715, 229430, 458860, 1399523, 2799046, 5598092, 6997615, 13995230, 27990460]

約数ペア:

[(1, 27990460), (2, 13995230), (4, 6997615), (5, 5598092), (10, 2799046), (20, 1399523), (61, 458860), (122, 229430), (244, 114715), (305, 91772), (610, 45886), (1220, 22943)]