19725984

素因数分解:

$2^5\times 3^3\times {\mathrm{17}}^2\times {\mathrm{79}}^1$

素因数の和:132

約数の個数: 144

約数和(自身を含む): 61891200

約数和(自身を除く): 42165216

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 17, 18, 24, 27, 32, 34, 36, 48, 51, 54, 68, 72, 79, 96, 102, 108, 136, 144, 153, 158, 204, 216, 237, 272, 288, 289, 306, 316, 408, 432, 459, 474, 544, 578, 612, 632, 711, 816, 864, 867, 918, 948, 1156, 1224, 1264, 1343, 1422, 1632, 1734, 1836, 1896, 2133, 2312, 2448, 2528, 2601, 2686, 2844, 3468, 3672, 3792, 4029, 4266, 4624, 4896, 5202, 5372, 5688, 6936, 7344, 7584, 7803, 8058, 8532, 9248, 10404, 10744, 11376, 12087, 13872, 14688, 15606, 16116, 17064, 20808, 21488, 22752, 22831, 24174, 27744, 31212, 32232, 34128, 36261, 41616, 42976, 45662, 48348, 62424, 64464, 68256, 68493, 72522, 83232, 91324, 96696, 124848, 128928, 136986, 145044, 182648, 193392, 205479, 249696, 273972, 290088, 365296, 386784, 410958, 547944, 580176, 616437, 730592, 821916, 1095888, 1160352, 1232874, 1643832, 2191776, 2465748, 3287664, 4931496, 6575328, 9862992, 19725984]

約数ペア:

[(1, 19725984), (2, 9862992), (3, 6575328), (4, 4931496), (6, 3287664), (8, 2465748), (9, 2191776), (12, 1643832), (16, 1232874), (17, 1160352), (18, 1095888), (24, 821916), (27, 730592), (32, 616437), (34, 580176), (36, 547944), (48, 410958), (51, 386784), (54, 365296), (68, 290088), (72, 273972), (79, 249696), (96, 205479), (102, 193392), (108, 182648), (136, 145044), (144, 136986), (153, 128928), (158, 124848), (204, 96696), (216, 91324), (237, 83232), (272, 72522), (288, 68493), (289, 68256), (306, 64464), (316, 62424), (408, 48348), (432, 45662), (459, 42976), (474, 41616), (544, 36261), (578, 34128), (612, 32232), (632, 31212), (711, 27744), (816, 24174), (864, 22831), (867, 22752), (918, 21488), (948, 20808), (1156, 17064), (1224, 16116), (1264, 15606), (1343, 14688), (1422, 13872), (1632, 12087), (1734, 11376), (1836, 10744), (1896, 10404), (2133, 9248), (2312, 8532), (2448, 8058), (2528, 7803), (2601, 7584), (2686, 7344), (2844, 6936), (3468, 5688), (3672, 5372), (3792, 5202), (4029, 4896), (4266, 4624)]