81211788

素因数分解:

$2^2\times 3^3\times 7^1\times {\mathrm{17}}^1\times {\mathrm{71}}^1\times {\mathrm{89}}^1$

素因数の和:197

約数の個数: 192

約数和(自身を含む): 261273600

約数和(自身を除く): 180061812

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 17, 18, 21, 27, 28, 34, 36, 42, 51, 54, 63, 68, 71, 84, 89, 102, 108, 119, 126, 142, 153, 178, 189, 204, 213, 238, 252, 267, 284, 306, 356, 357, 378, 426, 459, 476, 497, 534, 612, 623, 639, 714, 756, 801, 852, 918, 994, 1068, 1071, 1207, 1246, 1278, 1428, 1491, 1513, 1602, 1836, 1869, 1917, 1988, 2142, 2403, 2414, 2492, 2556, 2982, 3026, 3204, 3213, 3621, 3738, 3834, 4284, 4473, 4539, 4806, 4828, 5607, 5964, 6052, 6319, 6426, 7242, 7476, 7668, 8449, 8946, 9078, 9612, 10591, 10863, 11214, 12638, 12852, 13419, 13617, 14484, 16821, 16898, 17892, 18156, 18957, 21182, 21726, 22428, 25276, 25347, 26838, 27234, 31773, 32589, 33642, 33796, 37914, 40851, 42364, 43452, 44233, 50694, 53676, 54468, 56871, 63546, 65178, 67284, 75828, 76041, 81702, 88466, 95319, 101388, 107423, 113742, 127092, 130356, 132699, 152082, 163404, 170613, 176932, 190638, 214846, 227484, 228123, 265398, 285957, 304164, 322269, 341226, 381276, 398097, 429692, 456246, 530796, 571914, 644538, 682452, 751961, 796194, 912492, 966807, 1143828, 1194291, 1289076, 1503922, 1592388, 1933614, 2255883, 2388582, 2900421, 3007844, 3867228, 4511766, 4777164, 5800842, 6767649, 9023532, 11601684, 13535298, 20302947, 27070596, 40605894, 81211788]

約数ペア:

[(1, 81211788), (2, 40605894), (3, 27070596), (4, 20302947), (6, 13535298), (7, 11601684), (9, 9023532), (12, 6767649), (14, 5800842), (17, 4777164), (18, 4511766), (21, 3867228), (27, 3007844), (28, 2900421), (34, 2388582), (36, 2255883), (42, 1933614), (51, 1592388), (54, 1503922), (63, 1289076), (68, 1194291), (71, 1143828), (84, 966807), (89, 912492), (102, 796194), (108, 751961), (119, 682452), (126, 644538), (142, 571914), (153, 530796), (178, 456246), (189, 429692), (204, 398097), (213, 381276), (238, 341226), (252, 322269), (267, 304164), (284, 285957), (306, 265398), (356, 228123), (357, 227484), (378, 214846), (426, 190638), (459, 176932), (476, 170613), (497, 163404), (534, 152082), (612, 132699), (623, 130356), (639, 127092), (714, 113742), (756, 107423), (801, 101388), (852, 95319), (918, 88466), (994, 81702), (1068, 76041), (1071, 75828), (1207, 67284), (1246, 65178), (1278, 63546), (1428, 56871), (1491, 54468), (1513, 53676), (1602, 50694), (1836, 44233), (1869, 43452), (1917, 42364), (1988, 40851), (2142, 37914), (2403, 33796), (2414, 33642), (2492, 32589), (2556, 31773), (2982, 27234), (3026, 26838), (3204, 25347), (3213, 25276), (3621, 22428), (3738, 21726), (3834, 21182), (4284, 18957), (4473, 18156), (4539, 17892), (4806, 16898), (4828, 16821), (5607, 14484), (5964, 13617), (6052, 13419), (6319, 12852), (6426, 12638), (7242, 11214), (7476, 10863), (7668, 10591), (8449, 9612), (8946, 9078)]