21060180

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{5087}}^1$

素因数の和:5125

約数の個数: 72

約数和(自身を含む): 66673152

約数和(自身を除く): 45612972

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 23, 30, 36, 45, 46, 60, 69, 90, 92, 115, 138, 180, 207, 230, 276, 345, 414, 460, 690, 828, 1035, 1380, 2070, 4140, 5087, 10174, 15261, 20348, 25435, 30522, 45783, 50870, 61044, 76305, 91566, 101740, 117001, 152610, 183132, 228915, 234002, 305220, 351003, 457830, 468004, 585005, 702006, 915660, 1053009, 1170010, 1404012, 1755015, 2106018, 2340020, 3510030, 4212036, 5265045, 7020060, 10530090, 21060180]

約数ペア:

[(1, 21060180), (2, 10530090), (3, 7020060), (4, 5265045), (5, 4212036), (6, 3510030), (9, 2340020), (10, 2106018), (12, 1755015), (15, 1404012), (18, 1170010), (20, 1053009), (23, 915660), (30, 702006), (36, 585005), (45, 468004), (46, 457830), (60, 351003), (69, 305220), (90, 234002), (92, 228915), (115, 183132), (138, 152610), (180, 117001), (207, 101740), (230, 91566), (276, 76305), (345, 61044), (414, 50870), (460, 45783), (690, 30522), (828, 25435), (1035, 20348), (1380, 15261), (2070, 10174), (4140, 5087)]