128679900

素因数分解:

$2^2\times 3^1\times 5^2\times {\mathrm{257}}^1\times {\mathrm{1669}}^1$

素因数の和:1943

約数の個数: 72

約数和(自身を含む): 373986480

約数和(自身を除く): 245306580

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 25, 30, 50, 60, 75, 100, 150, 257, 300, 514, 771, 1028, 1285, 1542, 1669, 2570, 3084, 3338, 3855, 5007, 5140, 6425, 6676, 7710, 8345, 10014, 12850, 15420, 16690, 19275, 20028, 25035, 25700, 33380, 38550, 41725, 50070, 77100, 83450, 100140, 125175, 166900, 250350, 428933, 500700, 857866, 1286799, 1715732, 2144665, 2573598, 4289330, 5147196, 6433995, 8578660, 10723325, 12867990, 21446650, 25735980, 32169975, 42893300, 64339950, 128679900]

約数ペア:

[(1, 128679900), (2, 64339950), (3, 42893300), (4, 32169975), (5, 25735980), (6, 21446650), (10, 12867990), (12, 10723325), (15, 8578660), (20, 6433995), (25, 5147196), (30, 4289330), (50, 2573598), (60, 2144665), (75, 1715732), (100, 1286799), (150, 857866), (257, 500700), (300, 428933), (514, 250350), (771, 166900), (1028, 125175), (1285, 100140), (1542, 83450), (1669, 77100), (2570, 50070), (3084, 41725), (3338, 38550), (3855, 33380), (5007, 25700), (5140, 25035), (6425, 20028), (6676, 19275), (7710, 16690), (8345, 15420), (10014, 12850)]