81737880

素因数分解:

$2^3\times 3^1\times 5^1\times 7^2\times {\mathrm{13901}}^1$

素因数の和:13929

約数の個数: 96

約数和(自身を含む): 285269040

約数和(自身を除く): 203531160

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 49, 56, 60, 70, 84, 98, 105, 120, 140, 147, 168, 196, 210, 245, 280, 294, 392, 420, 490, 588, 735, 840, 980, 1176, 1470, 1960, 2940, 5880, 13901, 27802, 41703, 55604, 69505, 83406, 97307, 111208, 139010, 166812, 194614, 208515, 278020, 291921, 333624, 389228, 417030, 486535, 556040, 583842, 681149, 778456, 834060, 973070, 1167684, 1362298, 1459605, 1668120, 1946140, 2043447, 2335368, 2724596, 2919210, 3405745, 3892280, 4086894, 5449192, 5838420, 6811490, 8173788, 10217235, 11676840, 13622980, 16347576, 20434470, 27245960, 40868940, 81737880]

約数ペア:

[(1, 81737880), (2, 40868940), (3, 27245960), (4, 20434470), (5, 16347576), (6, 13622980), (7, 11676840), (8, 10217235), (10, 8173788), (12, 6811490), (14, 5838420), (15, 5449192), (20, 4086894), (21, 3892280), (24, 3405745), (28, 2919210), (30, 2724596), (35, 2335368), (40, 2043447), (42, 1946140), (49, 1668120), (56, 1459605), (60, 1362298), (70, 1167684), (84, 973070), (98, 834060), (105, 778456), (120, 681149), (140, 583842), (147, 556040), (168, 486535), (196, 417030), (210, 389228), (245, 333624), (280, 291921), (294, 278020), (392, 208515), (420, 194614), (490, 166812), (588, 139010), (735, 111208), (840, 97307), (980, 83406), (1176, 69505), (1470, 55604), (1960, 41703), (2940, 27802), (5880, 13901)]