278144460

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{140477}}^1$

素因数の和:140503

約数の個数: 72

約数和(自身を含む): 920411856

約数和(自身を除く): 642267396

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 11, 12, 15, 18, 20, 22, 30, 33, 36, 44, 45, 55, 60, 66, 90, 99, 110, 132, 165, 180, 198, 220, 330, 396, 495, 660, 990, 1980, 140477, 280954, 421431, 561908, 702385, 842862, 1264293, 1404770, 1545247, 1685724, 2107155, 2528586, 2809540, 3090494, 4214310, 4635741, 5057172, 6180988, 6321465, 7726235, 8428620, 9271482, 12642930, 13907223, 15452470, 18542964, 23178705, 25285860, 27814446, 30904940, 46357410, 55628892, 69536115, 92714820, 139072230, 278144460]

約数ペア:

[(1, 278144460), (2, 139072230), (3, 92714820), (4, 69536115), (5, 55628892), (6, 46357410), (9, 30904940), (10, 27814446), (11, 25285860), (12, 23178705), (15, 18542964), (18, 15452470), (20, 13907223), (22, 12642930), (30, 9271482), (33, 8428620), (36, 7726235), (44, 6321465), (45, 6180988), (55, 5057172), (60, 4635741), (66, 4214310), (90, 3090494), (99, 2809540), (110, 2528586), (132, 2107155), (165, 1685724), (180, 1545247), (198, 1404770), (220, 1264293), (330, 842862), (396, 702385), (495, 561908), (660, 421431), (990, 280954), (1980, 140477)]