51744780

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{389}}^1\times {\mathrm{739}}^1$

素因数の和:1143

約数の個数: 72

約数和(自身を含む): 157575600

約数和(自身を除く): 105830820

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 389, 739, 778, 1167, 1478, 1556, 1945, 2217, 2334, 2956, 3501, 3695, 3890, 4434, 4668, 5835, 6651, 7002, 7390, 7780, 8868, 11085, 11670, 13302, 14004, 14780, 17505, 22170, 23340, 26604, 33255, 35010, 44340, 66510, 70020, 133020, 287471, 574942, 862413, 1149884, 1437355, 1724826, 2587239, 2874710, 3449652, 4312065, 5174478, 5749420, 8624130, 10348956, 12936195, 17248260, 25872390, 51744780]

約数ペア:

[(1, 51744780), (2, 25872390), (3, 17248260), (4, 12936195), (5, 10348956), (6, 8624130), (9, 5749420), (10, 5174478), (12, 4312065), (15, 3449652), (18, 2874710), (20, 2587239), (30, 1724826), (36, 1437355), (45, 1149884), (60, 862413), (90, 574942), (180, 287471), (389, 133020), (739, 70020), (778, 66510), (1167, 44340), (1478, 35010), (1556, 33255), (1945, 26604), (2217, 23340), (2334, 22170), (2956, 17505), (3501, 14780), (3695, 14004), (3890, 13302), (4434, 11670), (4668, 11085), (5835, 8868), (6651, 7780), (7002, 7390)]