64813788

素因数分解:

$2^2\times 3^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{197}}^1$

素因数の和:276

約数の個数: 144

約数和(自身を含む): 191711520

約数和(自身を除く): 126897732

約数列:

[1, 2, 3, 4, 6, 9, 12, 13, 18, 19, 26, 36, 37, 38, 39, 52, 57, 74, 76, 78, 111, 114, 117, 148, 156, 171, 197, 222, 228, 234, 247, 333, 342, 394, 444, 468, 481, 494, 591, 666, 684, 703, 741, 788, 962, 988, 1182, 1332, 1406, 1443, 1482, 1773, 1924, 2109, 2223, 2364, 2561, 2812, 2886, 2964, 3546, 3743, 4218, 4329, 4446, 5122, 5772, 6327, 7092, 7289, 7486, 7683, 8436, 8658, 8892, 9139, 10244, 11229, 12654, 14578, 14972, 15366, 17316, 18278, 21867, 22458, 23049, 25308, 27417, 29156, 30732, 33687, 36556, 43734, 44916, 46098, 48659, 54834, 65601, 67374, 82251, 87468, 92196, 94757, 97318, 109668, 131202, 134748, 138491, 145977, 164502, 189514, 194636, 262404, 276982, 284271, 291954, 329004, 379028, 415473, 437931, 553964, 568542, 583908, 830946, 852813, 875862, 1137084, 1246419, 1661892, 1705626, 1751724, 1800383, 2492838, 3411252, 3600766, 4985676, 5401149, 7201532, 10802298, 16203447, 21604596, 32406894, 64813788]

約数ペア:

[(1, 64813788), (2, 32406894), (3, 21604596), (4, 16203447), (6, 10802298), (9, 7201532), (12, 5401149), (13, 4985676), (18, 3600766), (19, 3411252), (26, 2492838), (36, 1800383), (37, 1751724), (38, 1705626), (39, 1661892), (52, 1246419), (57, 1137084), (74, 875862), (76, 852813), (78, 830946), (111, 583908), (114, 568542), (117, 553964), (148, 437931), (156, 415473), (171, 379028), (197, 329004), (222, 291954), (228, 284271), (234, 276982), (247, 262404), (333, 194636), (342, 189514), (394, 164502), (444, 145977), (468, 138491), (481, 134748), (494, 131202), (591, 109668), (666, 97318), (684, 94757), (703, 92196), (741, 87468), (788, 82251), (962, 67374), (988, 65601), (1182, 54834), (1332, 48659), (1406, 46098), (1443, 44916), (1482, 43734), (1773, 36556), (1924, 33687), (2109, 30732), (2223, 29156), (2364, 27417), (2561, 25308), (2812, 23049), (2886, 22458), (2964, 21867), (3546, 18278), (3743, 17316), (4218, 15366), (4329, 14972), (4446, 14578), (5122, 12654), (5772, 11229), (6327, 10244), (7092, 9139), (7289, 8892), (7486, 8658), (7683, 8436)]