87578475

素因数分解:

$3^1\times 5^2\times {\mathrm{17}}^1\times {\mathrm{149}}^1\times {\mathrm{461}}^1$

素因数の和:640

約数の個数: 48

約数和(自身を含む): 154677600

約数和(自身を除く): 67099125

約数列:

[1, 3, 5, 15, 17, 25, 51, 75, 85, 149, 255, 425, 447, 461, 745, 1275, 1383, 2235, 2305, 2533, 3725, 6915, 7599, 7837, 11175, 11525, 12665, 23511, 34575, 37995, 39185, 63325, 68689, 117555, 189975, 195925, 206067, 343445, 587775, 1030335, 1167713, 1717225, 3503139, 5151675, 5838565, 17515695, 29192825, 87578475]

約数ペア:

[(1, 87578475), (3, 29192825), (5, 17515695), (15, 5838565), (17, 5151675), (25, 3503139), (51, 1717225), (75, 1167713), (85, 1030335), (149, 587775), (255, 343445), (425, 206067), (447, 195925), (461, 189975), (745, 117555), (1275, 68689), (1383, 63325), (2235, 39185), (2305, 37995), (2533, 34575), (3725, 23511), (6915, 12665), (7599, 11525), (7837, 11175)]