61742940

素因数分解:

$2^2\times 3^1\times 5^1\times 7^2\times {\mathrm{21001}}^1$

素因数の和:21027

約数の個数: 72

約数和(自身を含む): 201115152

約数和(自身を除く): 139372212

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 49, 60, 70, 84, 98, 105, 140, 147, 196, 210, 245, 294, 420, 490, 588, 735, 980, 1470, 2940, 21001, 42002, 63003, 84004, 105005, 126006, 147007, 210010, 252012, 294014, 315015, 420020, 441021, 588028, 630030, 735035, 882042, 1029049, 1260060, 1470070, 1764084, 2058098, 2205105, 2940140, 3087147, 4116196, 4410210, 5145245, 6174294, 8820420, 10290490, 12348588, 15435735, 20580980, 30871470, 61742940]

約数ペア:

[(1, 61742940), (2, 30871470), (3, 20580980), (4, 15435735), (5, 12348588), (6, 10290490), (7, 8820420), (10, 6174294), (12, 5145245), (14, 4410210), (15, 4116196), (20, 3087147), (21, 2940140), (28, 2205105), (30, 2058098), (35, 1764084), (42, 1470070), (49, 1260060), (60, 1029049), (70, 882042), (84, 735035), (98, 630030), (105, 588028), (140, 441021), (147, 420020), (196, 315015), (210, 294014), (245, 252012), (294, 210010), (420, 147007), (490, 126006), (588, 105005), (735, 84004), (980, 63003), (1470, 42002), (2940, 21001)]