81380970

素因数分解:

$2^1\times 3^3\times 5^1\times {\mathrm{11}}^2\times {\mathrm{47}}^1\times {\mathrm{53}}^1$

素因数の和:138

約数の個数: 192

約数和(自身を含む): 248209920

約数和(自身を除く): 166828950

約数列:

[1, 2, 3, 5, 6, 9, 10, 11, 15, 18, 22, 27, 30, 33, 45, 47, 53, 54, 55, 66, 90, 94, 99, 106, 110, 121, 135, 141, 159, 165, 198, 235, 242, 265, 270, 282, 297, 318, 330, 363, 423, 470, 477, 495, 517, 530, 583, 594, 605, 705, 726, 795, 846, 954, 990, 1034, 1089, 1166, 1210, 1269, 1410, 1431, 1485, 1551, 1590, 1749, 1815, 2115, 2178, 2385, 2491, 2538, 2585, 2862, 2915, 2970, 3102, 3267, 3498, 3630, 4230, 4653, 4770, 4982, 5170, 5247, 5445, 5687, 5830, 6345, 6413, 6534, 7155, 7473, 7755, 8745, 9306, 10494, 10890, 11374, 12455, 12690, 12826, 13959, 14310, 14946, 15510, 15741, 16335, 17061, 17490, 19239, 22419, 23265, 24910, 26235, 27401, 27918, 28435, 31482, 32065, 32670, 34122, 37365, 38478, 44838, 46530, 51183, 52470, 54802, 56870, 57717, 64130, 67257, 69795, 74730, 78705, 82203, 85305, 96195, 102366, 112095, 115434, 134514, 137005, 139590, 153549, 157410, 164406, 170610, 173151, 192390, 224190, 246609, 255915, 274010, 288585, 301411, 307098, 336285, 346302, 411015, 493218, 511830, 577170, 602822, 672570, 739827, 767745, 822030, 865755, 904233, 1233045, 1479654, 1507055, 1535490, 1731510, 1808466, 2466090, 2712699, 3014110, 3699135, 4521165, 5425398, 7398270, 8138097, 9042330, 13563495, 16276194, 27126990, 40690485, 81380970]

約数ペア:

[(1, 81380970), (2, 40690485), (3, 27126990), (5, 16276194), (6, 13563495), (9, 9042330), (10, 8138097), (11, 7398270), (15, 5425398), (18, 4521165), (22, 3699135), (27, 3014110), (30, 2712699), (33, 2466090), (45, 1808466), (47, 1731510), (53, 1535490), (54, 1507055), (55, 1479654), (66, 1233045), (90, 904233), (94, 865755), (99, 822030), (106, 767745), (110, 739827), (121, 672570), (135, 602822), (141, 577170), (159, 511830), (165, 493218), (198, 411015), (235, 346302), (242, 336285), (265, 307098), (270, 301411), (282, 288585), (297, 274010), (318, 255915), (330, 246609), (363, 224190), (423, 192390), (470, 173151), (477, 170610), (495, 164406), (517, 157410), (530, 153549), (583, 139590), (594, 137005), (605, 134514), (705, 115434), (726, 112095), (795, 102366), (846, 96195), (954, 85305), (990, 82203), (1034, 78705), (1089, 74730), (1166, 69795), (1210, 67257), (1269, 64130), (1410, 57717), (1431, 56870), (1485, 54802), (1551, 52470), (1590, 51183), (1749, 46530), (1815, 44838), (2115, 38478), (2178, 37365), (2385, 34122), (2491, 32670), (2538, 32065), (2585, 31482), (2862, 28435), (2915, 27918), (2970, 27401), (3102, 26235), (3267, 24910), (3498, 23265), (3630, 22419), (4230, 19239), (4653, 17490), (4770, 17061), (4982, 16335), (5170, 15741), (5247, 15510), (5445, 14946), (5687, 14310), (5830, 13959), (6345, 12826), (6413, 12690), (6534, 12455), (7155, 11374), (7473, 10890), (7755, 10494), (8745, 9306)]