23816840

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{61}}^1\times {\mathrm{227}}^1$

素因数の和:342

約数の個数: 64

約数和(自身を含む): 55978560

約数和(自身を除く): 32161720

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 61, 86, 122, 172, 215, 227, 244, 305, 344, 430, 454, 488, 610, 860, 908, 1135, 1220, 1720, 1816, 2270, 2440, 2623, 4540, 5246, 9080, 9761, 10492, 13115, 13847, 19522, 20984, 26230, 27694, 39044, 48805, 52460, 55388, 69235, 78088, 97610, 104920, 110776, 138470, 195220, 276940, 390440, 553880, 595421, 1190842, 2381684, 2977105, 4763368, 5954210, 11908420, 23816840]

約数ペア:

[(1, 23816840), (2, 11908420), (4, 5954210), (5, 4763368), (8, 2977105), (10, 2381684), (20, 1190842), (40, 595421), (43, 553880), (61, 390440), (86, 276940), (122, 195220), (172, 138470), (215, 110776), (227, 104920), (244, 97610), (305, 78088), (344, 69235), (430, 55388), (454, 52460), (488, 48805), (610, 39044), (860, 27694), (908, 26230), (1135, 20984), (1220, 19522), (1720, 13847), (1816, 13115), (2270, 10492), (2440, 9761), (2623, 9080), (4540, 5246)]