20054900

素因数分解:

$2^2\times 5^2\times {\mathrm{17}}^1\times {\mathrm{47}}^1\times {\mathrm{251}}^1$

素因数の和:329

約数の個数: 72

約数和(自身を含む): 47246976

約数和(自身を除く): 27192076

約数列:

[1, 2, 4, 5, 10, 17, 20, 25, 34, 47, 50, 68, 85, 94, 100, 170, 188, 235, 251, 340, 425, 470, 502, 799, 850, 940, 1004, 1175, 1255, 1598, 1700, 2350, 2510, 3196, 3995, 4267, 4700, 5020, 6275, 7990, 8534, 11797, 12550, 15980, 17068, 19975, 21335, 23594, 25100, 39950, 42670, 47188, 58985, 79900, 85340, 106675, 117970, 200549, 213350, 235940, 294925, 401098, 426700, 589850, 802196, 1002745, 1179700, 2005490, 4010980, 5013725, 10027450, 20054900]

約数ペア:

[(1, 20054900), (2, 10027450), (4, 5013725), (5, 4010980), (10, 2005490), (17, 1179700), (20, 1002745), (25, 802196), (34, 589850), (47, 426700), (50, 401098), (68, 294925), (85, 235940), (94, 213350), (100, 200549), (170, 117970), (188, 106675), (235, 85340), (251, 79900), (340, 58985), (425, 47188), (470, 42670), (502, 39950), (799, 25100), (850, 23594), (940, 21335), (1004, 19975), (1175, 17068), (1255, 15980), (1598, 12550), (1700, 11797), (2350, 8534), (2510, 7990), (3196, 6275), (3995, 5020), (4267, 4700)]