81208920

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{52057}}^1$

素因数の和:52084

約数の個数: 64

約数和(自身を含む): 262372320

約数和(自身を除く): 181163400

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 20, 24, 26, 30, 39, 40, 52, 60, 65, 78, 104, 120, 130, 156, 195, 260, 312, 390, 520, 780, 1560, 52057, 104114, 156171, 208228, 260285, 312342, 416456, 520570, 624684, 676741, 780855, 1041140, 1249368, 1353482, 1561710, 2030223, 2082280, 2706964, 3123420, 3383705, 4060446, 5413928, 6246840, 6767410, 8120892, 10151115, 13534820, 16241784, 20302230, 27069640, 40604460, 81208920]

約数ペア:

[(1, 81208920), (2, 40604460), (3, 27069640), (4, 20302230), (5, 16241784), (6, 13534820), (8, 10151115), (10, 8120892), (12, 6767410), (13, 6246840), (15, 5413928), (20, 4060446), (24, 3383705), (26, 3123420), (30, 2706964), (39, 2082280), (40, 2030223), (52, 1561710), (60, 1353482), (65, 1249368), (78, 1041140), (104, 780855), (120, 676741), (130, 624684), (156, 520570), (195, 416456), (260, 312342), (312, 260285), (390, 208228), (520, 156171), (780, 104114), (1560, 52057)]