28704240

素因数分解:

$2^4\times 3^3\times 5^1\times {\mathrm{97}}^1\times {\mathrm{137}}^1$

素因数の和:256

約数の個数: 160

約数和(自身を含む): 100618560

約数和(自身を除く): 71914320

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, 97, 108, 120, 135, 137, 144, 180, 194, 216, 240, 270, 274, 291, 360, 388, 411, 432, 485, 540, 548, 582, 685, 720, 776, 822, 873, 970, 1080, 1096, 1164, 1233, 1370, 1455, 1552, 1644, 1746, 1940, 2055, 2160, 2192, 2328, 2466, 2619, 2740, 2910, 3288, 3492, 3699, 3880, 4110, 4365, 4656, 4932, 5238, 5480, 5820, 6165, 6576, 6984, 7398, 7760, 8220, 8730, 9864, 10476, 10960, 11640, 12330, 13095, 13289, 13968, 14796, 16440, 17460, 18495, 19728, 20952, 23280, 24660, 26190, 26578, 29592, 32880, 34920, 36990, 39867, 41904, 49320, 52380, 53156, 59184, 66445, 69840, 73980, 79734, 98640, 104760, 106312, 119601, 132890, 147960, 159468, 199335, 209520, 212624, 239202, 265780, 295920, 318936, 358803, 398670, 478404, 531560, 598005, 637872, 717606, 797340, 956808, 1063120, 1196010, 1435212, 1594680, 1794015, 1913616, 2392020, 2870424, 3189360, 3588030, 4784040, 5740848, 7176060, 9568080, 14352120, 28704240]

約数ペア:

[(1, 28704240), (2, 14352120), (3, 9568080), (4, 7176060), (5, 5740848), (6, 4784040), (8, 3588030), (9, 3189360), (10, 2870424), (12, 2392020), (15, 1913616), (16, 1794015), (18, 1594680), (20, 1435212), (24, 1196010), (27, 1063120), (30, 956808), (36, 797340), (40, 717606), (45, 637872), (48, 598005), (54, 531560), (60, 478404), (72, 398670), (80, 358803), (90, 318936), (97, 295920), (108, 265780), (120, 239202), (135, 212624), (137, 209520), (144, 199335), (180, 159468), (194, 147960), (216, 132890), (240, 119601), (270, 106312), (274, 104760), (291, 98640), (360, 79734), (388, 73980), (411, 69840), (432, 66445), (485, 59184), (540, 53156), (548, 52380), (582, 49320), (685, 41904), (720, 39867), (776, 36990), (822, 34920), (873, 32880), (970, 29592), (1080, 26578), (1096, 26190), (1164, 24660), (1233, 23280), (1370, 20952), (1455, 19728), (1552, 18495), (1644, 17460), (1746, 16440), (1940, 14796), (2055, 13968), (2160, 13289), (2192, 13095), (2328, 12330), (2466, 11640), (2619, 10960), (2740, 10476), (2910, 9864), (3288, 8730), (3492, 8220), (3699, 7760), (3880, 7398), (4110, 6984), (4365, 6576), (4656, 6165), (4932, 5820), (5238, 5480)]