78931000

素因数分解:

$2^3\times 5^3\times {\mathrm{17}}^1\times {\mathrm{4643}}^1$

素因数の和:4681

約数の個数: 64

約数和(自身を含む): 195605280

約数和(自身を除く): 116674280

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 25, 34, 40, 50, 68, 85, 100, 125, 136, 170, 200, 250, 340, 425, 500, 680, 850, 1000, 1700, 2125, 3400, 4250, 4643, 8500, 9286, 17000, 18572, 23215, 37144, 46430, 78931, 92860, 116075, 157862, 185720, 232150, 315724, 394655, 464300, 580375, 631448, 789310, 928600, 1160750, 1578620, 1973275, 2321500, 3157240, 3946550, 4643000, 7893100, 9866375, 15786200, 19732750, 39465500, 78931000]

約数ペア:

[(1, 78931000), (2, 39465500), (4, 19732750), (5, 15786200), (8, 9866375), (10, 7893100), (17, 4643000), (20, 3946550), (25, 3157240), (34, 2321500), (40, 1973275), (50, 1578620), (68, 1160750), (85, 928600), (100, 789310), (125, 631448), (136, 580375), (170, 464300), (200, 394655), (250, 315724), (340, 232150), (425, 185720), (500, 157862), (680, 116075), (850, 92860), (1000, 78931), (1700, 46430), (2125, 37144), (3400, 23215), (4250, 18572), (4643, 17000), (8500, 9286)]