78455340

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{25639}}^1$

素因数の和:25671

約数の個数: 72

約数和(自身を含む): 251989920

約数和(自身を除く): 173534580

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 17, 18, 20, 30, 34, 36, 45, 51, 60, 68, 85, 90, 102, 153, 170, 180, 204, 255, 306, 340, 510, 612, 765, 1020, 1530, 3060, 25639, 51278, 76917, 102556, 128195, 153834, 230751, 256390, 307668, 384585, 435863, 461502, 512780, 769170, 871726, 923004, 1153755, 1307589, 1538340, 1743452, 2179315, 2307510, 2615178, 3922767, 4358630, 4615020, 5230356, 6537945, 7845534, 8717260, 13075890, 15691068, 19613835, 26151780, 39227670, 78455340]

約数ペア:

[(1, 78455340), (2, 39227670), (3, 26151780), (4, 19613835), (5, 15691068), (6, 13075890), (9, 8717260), (10, 7845534), (12, 6537945), (15, 5230356), (17, 4615020), (18, 4358630), (20, 3922767), (30, 2615178), (34, 2307510), (36, 2179315), (45, 1743452), (51, 1538340), (60, 1307589), (68, 1153755), (85, 923004), (90, 871726), (102, 769170), (153, 512780), (170, 461502), (180, 435863), (204, 384585), (255, 307668), (306, 256390), (340, 230751), (510, 153834), (612, 128195), (765, 102556), (1020, 76917), (1530, 51278), (3060, 25639)]