20729670

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{2311}}^1$

素因数の和:2357

約数の個数: 64

約数和(自身を含む): 55931904

約数和(自身を除く): 35202234

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 23, 26, 30, 39, 46, 65, 69, 78, 115, 130, 138, 195, 230, 299, 345, 390, 598, 690, 897, 1495, 1794, 2311, 2990, 4485, 4622, 6933, 8970, 11555, 13866, 23110, 30043, 34665, 53153, 60086, 69330, 90129, 106306, 150215, 159459, 180258, 265765, 300430, 318918, 450645, 531530, 690989, 797295, 901290, 1381978, 1594590, 2072967, 3454945, 4145934, 6909890, 10364835, 20729670]

約数ペア:

[(1, 20729670), (2, 10364835), (3, 6909890), (5, 4145934), (6, 3454945), (10, 2072967), (13, 1594590), (15, 1381978), (23, 901290), (26, 797295), (30, 690989), (39, 531530), (46, 450645), (65, 318918), (69, 300430), (78, 265765), (115, 180258), (130, 159459), (138, 150215), (195, 106306), (230, 90129), (299, 69330), (345, 60086), (390, 53153), (598, 34665), (690, 30043), (897, 23110), (1495, 13866), (1794, 11555), (2311, 8970), (2990, 6933), (4485, 4622)]