81876720

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{389}}^1\times {\mathrm{877}}^1$

素因数の和:1282

約数の個数: 80

約数和(自身を含む): 254760480

約数和(自身を除く): 172883760

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 120, 240, 389, 778, 877, 1167, 1556, 1754, 1945, 2334, 2631, 3112, 3508, 3890, 4385, 4668, 5262, 5835, 6224, 7016, 7780, 8770, 9336, 10524, 11670, 13155, 14032, 15560, 17540, 18672, 21048, 23340, 26310, 31120, 35080, 42096, 46680, 52620, 70160, 93360, 105240, 210480, 341153, 682306, 1023459, 1364612, 1705765, 2046918, 2729224, 3411530, 4093836, 5117295, 5458448, 6823060, 8187672, 10234590, 13646120, 16375344, 20469180, 27292240, 40938360, 81876720]

約数ペア:

[(1, 81876720), (2, 40938360), (3, 27292240), (4, 20469180), (5, 16375344), (6, 13646120), (8, 10234590), (10, 8187672), (12, 6823060), (15, 5458448), (16, 5117295), (20, 4093836), (24, 3411530), (30, 2729224), (40, 2046918), (48, 1705765), (60, 1364612), (80, 1023459), (120, 682306), (240, 341153), (389, 210480), (778, 105240), (877, 93360), (1167, 70160), (1556, 52620), (1754, 46680), (1945, 42096), (2334, 35080), (2631, 31120), (3112, 26310), (3508, 23340), (3890, 21048), (4385, 18672), (4668, 17540), (5262, 15560), (5835, 14032), (6224, 13155), (7016, 11670), (7780, 10524), (8770, 9336)]