290758480

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{439}}^1\times {\mathrm{487}}^1$

素因数の和:956

約数の個数: 80

約数和(自身を含む): 718882560

約数和(自身を除く): 428124080

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 34, 40, 68, 80, 85, 136, 170, 272, 340, 439, 487, 680, 878, 974, 1360, 1756, 1948, 2195, 2435, 3512, 3896, 4390, 4870, 7024, 7463, 7792, 8279, 8780, 9740, 14926, 16558, 17560, 19480, 29852, 33116, 35120, 37315, 38960, 41395, 59704, 66232, 74630, 82790, 119408, 132464, 149260, 165580, 213793, 298520, 331160, 427586, 597040, 662320, 855172, 1068965, 1710344, 2137930, 3420688, 3634481, 4275860, 7268962, 8551720, 14537924, 17103440, 18172405, 29075848, 36344810, 58151696, 72689620, 145379240, 290758480]

約数ペア:

[(1, 290758480), (2, 145379240), (4, 72689620), (5, 58151696), (8, 36344810), (10, 29075848), (16, 18172405), (17, 17103440), (20, 14537924), (34, 8551720), (40, 7268962), (68, 4275860), (80, 3634481), (85, 3420688), (136, 2137930), (170, 1710344), (272, 1068965), (340, 855172), (439, 662320), (487, 597040), (680, 427586), (878, 331160), (974, 298520), (1360, 213793), (1756, 165580), (1948, 149260), (2195, 132464), (2435, 119408), (3512, 82790), (3896, 74630), (4390, 66232), (4870, 59704), (7024, 41395), (7463, 38960), (7792, 37315), (8279, 35120), (8780, 33116), (9740, 29852), (14926, 19480), (16558, 17560)]