81668880

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{3659}}^1$

素因数の和:3709

約数の個数: 120

約数和(自身を含む): 283196160

約数和(自身を除く): 201527280

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 31, 36, 40, 45, 48, 60, 62, 72, 80, 90, 93, 120, 124, 144, 155, 180, 186, 240, 248, 279, 310, 360, 372, 465, 496, 558, 620, 720, 744, 930, 1116, 1240, 1395, 1488, 1860, 2232, 2480, 2790, 3659, 3720, 4464, 5580, 7318, 7440, 10977, 11160, 14636, 18295, 21954, 22320, 29272, 32931, 36590, 43908, 54885, 58544, 65862, 73180, 87816, 109770, 113429, 131724, 146360, 164655, 175632, 219540, 226858, 263448, 292720, 329310, 340287, 439080, 453716, 526896, 567145, 658620, 680574, 878160, 907432, 1020861, 1134290, 1317240, 1361148, 1701435, 1814864, 2041722, 2268580, 2634480, 2722296, 3402870, 4083444, 4537160, 5104305, 5444592, 6805740, 8166888, 9074320, 10208610, 13611480, 16333776, 20417220, 27222960, 40834440, 81668880]

約数ペア:

[(1, 81668880), (2, 40834440), (3, 27222960), (4, 20417220), (5, 16333776), (6, 13611480), (8, 10208610), (9, 9074320), (10, 8166888), (12, 6805740), (15, 5444592), (16, 5104305), (18, 4537160), (20, 4083444), (24, 3402870), (30, 2722296), (31, 2634480), (36, 2268580), (40, 2041722), (45, 1814864), (48, 1701435), (60, 1361148), (62, 1317240), (72, 1134290), (80, 1020861), (90, 907432), (93, 878160), (120, 680574), (124, 658620), (144, 567145), (155, 526896), (180, 453716), (186, 439080), (240, 340287), (248, 329310), (279, 292720), (310, 263448), (360, 226858), (372, 219540), (465, 175632), (496, 164655), (558, 146360), (620, 131724), (720, 113429), (744, 109770), (930, 87816), (1116, 73180), (1240, 65862), (1395, 58544), (1488, 54885), (1860, 43908), (2232, 36590), (2480, 32931), (2790, 29272), (3659, 22320), (3720, 21954), (4464, 18295), (5580, 14636), (7318, 11160), (7440, 10977)]