851824340

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{89}}^2\times {\mathrm{283}}^1$

素因数の和:489

約数の個数: 72

約数和(自身を含む): 1911104160

約数和(自身を除く): 1059279820

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 89, 95, 178, 190, 283, 356, 380, 445, 566, 890, 1132, 1415, 1691, 1780, 2830, 3382, 5377, 5660, 6764, 7921, 8455, 10754, 15842, 16910, 21508, 25187, 26885, 31684, 33820, 39605, 50374, 53770, 79210, 100748, 107540, 125935, 150499, 158420, 251870, 300998, 478553, 503740, 601996, 752495, 957106, 1504990, 1914212, 2241643, 2392765, 3009980, 4483286, 4785530, 8966572, 9571060, 11208215, 22416430, 42591217, 44832860, 85182434, 170364868, 212956085, 425912170, 851824340]

約数ペア:

[(1, 851824340), (2, 425912170), (4, 212956085), (5, 170364868), (10, 85182434), (19, 44832860), (20, 42591217), (38, 22416430), (76, 11208215), (89, 9571060), (95, 8966572), (178, 4785530), (190, 4483286), (283, 3009980), (356, 2392765), (380, 2241643), (445, 1914212), (566, 1504990), (890, 957106), (1132, 752495), (1415, 601996), (1691, 503740), (1780, 478553), (2830, 300998), (3382, 251870), (5377, 158420), (5660, 150499), (6764, 125935), (7921, 107540), (8455, 100748), (10754, 79210), (15842, 53770), (16910, 50374), (21508, 39605), (25187, 33820), (26885, 31684)]