871888948

素因数分解:

$2^2\times 7^2\times {\mathrm{19}}^1\times {\mathrm{257}}^1\times {\mathrm{911}}^1$

素因数の和:1205

約数の個数: 72

約数和(自身を含む): 1877662080

約数和(自身を除く): 1005773132

約数列:

[1, 2, 4, 7, 14, 19, 28, 38, 49, 76, 98, 133, 196, 257, 266, 514, 532, 911, 931, 1028, 1799, 1822, 1862, 3598, 3644, 3724, 4883, 6377, 7196, 9766, 12593, 12754, 17309, 19532, 25186, 25508, 34181, 34618, 44639, 50372, 68362, 69236, 89278, 121163, 136724, 178556, 234127, 239267, 242326, 468254, 478534, 484652, 848141, 936508, 957068, 1638889, 1696282, 3277778, 3392564, 4448413, 6555556, 8896826, 11472223, 17793652, 22944446, 31138891, 45888892, 62277782, 124555564, 217972237, 435944474, 871888948]

約数ペア:

[(1, 871888948), (2, 435944474), (4, 217972237), (7, 124555564), (14, 62277782), (19, 45888892), (28, 31138891), (38, 22944446), (49, 17793652), (76, 11472223), (98, 8896826), (133, 6555556), (196, 4448413), (257, 3392564), (266, 3277778), (514, 1696282), (532, 1638889), (911, 957068), (931, 936508), (1028, 848141), (1799, 484652), (1822, 478534), (1862, 468254), (3598, 242326), (3644, 239267), (3724, 234127), (4883, 178556), (6377, 136724), (7196, 121163), (9766, 89278), (12593, 69236), (12754, 68362), (17309, 50372), (19532, 44639), (25186, 34618), (25508, 34181)]