28325940

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{97}}^1\times {\mathrm{157}}^1$

素因数の和:297

約数の個数: 96

約数和(自身を含む): 83241984

約数和(自身を除く): 54916044

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 31, 60, 62, 93, 97, 124, 155, 157, 186, 194, 291, 310, 314, 372, 388, 465, 471, 485, 582, 620, 628, 785, 930, 942, 970, 1164, 1455, 1570, 1860, 1884, 1940, 2355, 2910, 3007, 3140, 4710, 4867, 5820, 6014, 9021, 9420, 9734, 12028, 14601, 15035, 15229, 18042, 19468, 24335, 29202, 30070, 30458, 36084, 45105, 45687, 48670, 58404, 60140, 60916, 73005, 76145, 90210, 91374, 97340, 146010, 152290, 180420, 182748, 228435, 292020, 304580, 456870, 472099, 913740, 944198, 1416297, 1888396, 2360495, 2832594, 4720990, 5665188, 7081485, 9441980, 14162970, 28325940]

約数ペア:

[(1, 28325940), (2, 14162970), (3, 9441980), (4, 7081485), (5, 5665188), (6, 4720990), (10, 2832594), (12, 2360495), (15, 1888396), (20, 1416297), (30, 944198), (31, 913740), (60, 472099), (62, 456870), (93, 304580), (97, 292020), (124, 228435), (155, 182748), (157, 180420), (186, 152290), (194, 146010), (291, 97340), (310, 91374), (314, 90210), (372, 76145), (388, 73005), (465, 60916), (471, 60140), (485, 58404), (582, 48670), (620, 45687), (628, 45105), (785, 36084), (930, 30458), (942, 30070), (970, 29202), (1164, 24335), (1455, 19468), (1570, 18042), (1860, 15229), (1884, 15035), (1940, 14601), (2355, 12028), (2910, 9734), (3007, 9420), (3140, 9021), (4710, 6014), (4867, 5820)]