18993250

素因数分解:

$2^1\times 5^3\times {\mathrm{17}}^1\times {\mathrm{41}}^1\times {\mathrm{109}}^1$

素因数の和:184

約数の個数: 64

約数和(自身を含む): 38918880

約数和(自身を除く): 19925630

約数列:

[1, 2, 5, 10, 17, 25, 34, 41, 50, 82, 85, 109, 125, 170, 205, 218, 250, 410, 425, 545, 697, 850, 1025, 1090, 1394, 1853, 2050, 2125, 2725, 3485, 3706, 4250, 4469, 5125, 5450, 6970, 8938, 9265, 10250, 13625, 17425, 18530, 22345, 27250, 34850, 44690, 46325, 75973, 87125, 92650, 111725, 151946, 174250, 223450, 231625, 379865, 463250, 558625, 759730, 1117250, 1899325, 3798650, 9496625, 18993250]

約数ペア:

[(1, 18993250), (2, 9496625), (5, 3798650), (10, 1899325), (17, 1117250), (25, 759730), (34, 558625), (41, 463250), (50, 379865), (82, 231625), (85, 223450), (109, 174250), (125, 151946), (170, 111725), (205, 92650), (218, 87125), (250, 75973), (410, 46325), (425, 44690), (545, 34850), (697, 27250), (850, 22345), (1025, 18530), (1090, 17425), (1394, 13625), (1853, 10250), (2050, 9265), (2125, 8938), (2725, 6970), (3485, 5450), (3706, 5125), (4250, 4469)]