81581040

素因数分解:

$2^4\times 3^3\times 5^1\times {\mathrm{179}}^1\times {\mathrm{211}}^1$

素因数の和:412

約数の個数: 160

約数和(自身を含む): 283910400

約数和(自身を除く): 202329360

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 27, 30, 36, 40, 45, 48, 54, 60, 72, 80, 90, 108, 120, 135, 144, 179, 180, 211, 216, 240, 270, 358, 360, 422, 432, 537, 540, 633, 716, 720, 844, 895, 1055, 1074, 1080, 1266, 1432, 1611, 1688, 1790, 1899, 2110, 2148, 2160, 2532, 2685, 2864, 3165, 3222, 3376, 3580, 3798, 4220, 4296, 4833, 5064, 5370, 5697, 6330, 6444, 7160, 7596, 8055, 8440, 8592, 9495, 9666, 10128, 10740, 11394, 12660, 12888, 14320, 15192, 16110, 16880, 18990, 19332, 21480, 22788, 24165, 25320, 25776, 28485, 30384, 32220, 37769, 37980, 38664, 42960, 45576, 48330, 50640, 56970, 64440, 75538, 75960, 77328, 91152, 96660, 113307, 113940, 128880, 151076, 151920, 188845, 193320, 226614, 227880, 302152, 339921, 377690, 386640, 453228, 455760, 566535, 604304, 679842, 755380, 906456, 1019763, 1133070, 1359684, 1510760, 1699605, 1812912, 2039526, 2266140, 2719368, 3021520, 3399210, 4079052, 4532280, 5098815, 5438736, 6798420, 8158104, 9064560, 10197630, 13596840, 16316208, 20395260, 27193680, 40790520, 81581040]

約数ペア:

[(1, 81581040), (2, 40790520), (3, 27193680), (4, 20395260), (5, 16316208), (6, 13596840), (8, 10197630), (9, 9064560), (10, 8158104), (12, 6798420), (15, 5438736), (16, 5098815), (18, 4532280), (20, 4079052), (24, 3399210), (27, 3021520), (30, 2719368), (36, 2266140), (40, 2039526), (45, 1812912), (48, 1699605), (54, 1510760), (60, 1359684), (72, 1133070), (80, 1019763), (90, 906456), (108, 755380), (120, 679842), (135, 604304), (144, 566535), (179, 455760), (180, 453228), (211, 386640), (216, 377690), (240, 339921), (270, 302152), (358, 227880), (360, 226614), (422, 193320), (432, 188845), (537, 151920), (540, 151076), (633, 128880), (716, 113940), (720, 113307), (844, 96660), (895, 91152), (1055, 77328), (1074, 75960), (1080, 75538), (1266, 64440), (1432, 56970), (1611, 50640), (1688, 48330), (1790, 45576), (1899, 42960), (2110, 38664), (2148, 37980), (2160, 37769), (2532, 32220), (2685, 30384), (2864, 28485), (3165, 25776), (3222, 25320), (3376, 24165), (3580, 22788), (3798, 21480), (4220, 19332), (4296, 18990), (4833, 16880), (5064, 16110), (5370, 15192), (5697, 14320), (6330, 12888), (6444, 12660), (7160, 11394), (7596, 10740), (8055, 10128), (8440, 9666), (8592, 9495)]