31489440

素因数分解:

$2^5\times 3^1\times 5^1\times {\mathrm{17}}^2\times {\mathrm{227}}^1$

素因数の和:279

約数の個数: 144

約数和(自身を含む): 105833952

約数和(自身を除く): 74344512

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 17, 20, 24, 30, 32, 34, 40, 48, 51, 60, 68, 80, 85, 96, 102, 120, 136, 160, 170, 204, 227, 240, 255, 272, 289, 340, 408, 454, 480, 510, 544, 578, 680, 681, 816, 867, 908, 1020, 1135, 1156, 1360, 1362, 1445, 1632, 1734, 1816, 2040, 2270, 2312, 2720, 2724, 2890, 3405, 3468, 3632, 3859, 4080, 4335, 4540, 4624, 5448, 5780, 6810, 6936, 7264, 7718, 8160, 8670, 9080, 9248, 10896, 11560, 11577, 13620, 13872, 15436, 17340, 18160, 19295, 21792, 23120, 23154, 27240, 27744, 30872, 34680, 36320, 38590, 46240, 46308, 54480, 57885, 61744, 65603, 69360, 77180, 92616, 108960, 115770, 123488, 131206, 138720, 154360, 185232, 196809, 231540, 262412, 308720, 328015, 370464, 393618, 463080, 524824, 617440, 656030, 787236, 926160, 984045, 1049648, 1312060, 1574472, 1852320, 1968090, 2099296, 2624120, 3148944, 3936180, 5248240, 6297888, 7872360, 10496480, 15744720, 31489440]

約数ペア:

[(1, 31489440), (2, 15744720), (3, 10496480), (4, 7872360), (5, 6297888), (6, 5248240), (8, 3936180), (10, 3148944), (12, 2624120), (15, 2099296), (16, 1968090), (17, 1852320), (20, 1574472), (24, 1312060), (30, 1049648), (32, 984045), (34, 926160), (40, 787236), (48, 656030), (51, 617440), (60, 524824), (68, 463080), (80, 393618), (85, 370464), (96, 328015), (102, 308720), (120, 262412), (136, 231540), (160, 196809), (170, 185232), (204, 154360), (227, 138720), (240, 131206), (255, 123488), (272, 115770), (289, 108960), (340, 92616), (408, 77180), (454, 69360), (480, 65603), (510, 61744), (544, 57885), (578, 54480), (680, 46308), (681, 46240), (816, 38590), (867, 36320), (908, 34680), (1020, 30872), (1135, 27744), (1156, 27240), (1360, 23154), (1362, 23120), (1445, 21792), (1632, 19295), (1734, 18160), (1816, 17340), (2040, 15436), (2270, 13872), (2312, 13620), (2720, 11577), (2724, 11560), (2890, 10896), (3405, 9248), (3468, 9080), (3632, 8670), (3859, 8160), (4080, 7718), (4335, 7264), (4540, 6936), (4624, 6810), (5448, 5780)]