489780180

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{131}}^1\times {\mathrm{20771}}^1$

素因数の和:20917

約数の個数: 72

約数和(自身を含む): 1497079584

約数和(自身を除く): 1007299404

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 131, 180, 262, 393, 524, 655, 786, 1179, 1310, 1572, 1965, 2358, 2620, 3930, 4716, 5895, 7860, 11790, 20771, 23580, 41542, 62313, 83084, 103855, 124626, 186939, 207710, 249252, 311565, 373878, 415420, 623130, 747756, 934695, 1246260, 1869390, 2721001, 3738780, 5442002, 8163003, 10884004, 13605005, 16326006, 24489009, 27210010, 32652012, 40815015, 48978018, 54420020, 81630030, 97956036, 122445045, 163260060, 244890090, 489780180]

約数ペア:

[(1, 489780180), (2, 244890090), (3, 163260060), (4, 122445045), (5, 97956036), (6, 81630030), (9, 54420020), (10, 48978018), (12, 40815015), (15, 32652012), (18, 27210010), (20, 24489009), (30, 16326006), (36, 13605005), (45, 10884004), (60, 8163003), (90, 5442002), (131, 3738780), (180, 2721001), (262, 1869390), (393, 1246260), (524, 934695), (655, 747756), (786, 623130), (1179, 415420), (1310, 373878), (1572, 311565), (1965, 249252), (2358, 207710), (2620, 186939), (3930, 124626), (4716, 103855), (5895, 83084), (7860, 62313), (11790, 41542), (20771, 23580)]