72918180

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{61}}^1\times {\mathrm{229}}^1$

素因数の和:334

約数の個数: 144

約数和(自身を含む): 233578800

約数和(自身を除く): 160660620

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 29, 30, 36, 45, 58, 60, 61, 87, 90, 116, 122, 145, 174, 180, 183, 229, 244, 261, 290, 305, 348, 366, 435, 458, 522, 549, 580, 610, 687, 732, 870, 915, 916, 1044, 1098, 1145, 1220, 1305, 1374, 1740, 1769, 1830, 2061, 2196, 2290, 2610, 2745, 2748, 3435, 3538, 3660, 4122, 4580, 5220, 5307, 5490, 6641, 6870, 7076, 8244, 8845, 10305, 10614, 10980, 13282, 13740, 13969, 15921, 17690, 19923, 20610, 21228, 26535, 26564, 27938, 31842, 33205, 35380, 39846, 41220, 41907, 53070, 55876, 59769, 63684, 66410, 69845, 79605, 79692, 83814, 99615, 106140, 119538, 125721, 132820, 139690, 159210, 167628, 199230, 209535, 239076, 251442, 279380, 298845, 318420, 398460, 405101, 419070, 502884, 597690, 628605, 810202, 838140, 1195380, 1215303, 1257210, 1620404, 2025505, 2430606, 2514420, 3645909, 4051010, 4861212, 6076515, 7291818, 8102020, 12153030, 14583636, 18229545, 24306060, 36459090, 72918180]

約数ペア:

[(1, 72918180), (2, 36459090), (3, 24306060), (4, 18229545), (5, 14583636), (6, 12153030), (9, 8102020), (10, 7291818), (12, 6076515), (15, 4861212), (18, 4051010), (20, 3645909), (29, 2514420), (30, 2430606), (36, 2025505), (45, 1620404), (58, 1257210), (60, 1215303), (61, 1195380), (87, 838140), (90, 810202), (116, 628605), (122, 597690), (145, 502884), (174, 419070), (180, 405101), (183, 398460), (229, 318420), (244, 298845), (261, 279380), (290, 251442), (305, 239076), (348, 209535), (366, 199230), (435, 167628), (458, 159210), (522, 139690), (549, 132820), (580, 125721), (610, 119538), (687, 106140), (732, 99615), (870, 83814), (915, 79692), (916, 79605), (1044, 69845), (1098, 66410), (1145, 63684), (1220, 59769), (1305, 55876), (1374, 53070), (1740, 41907), (1769, 41220), (1830, 39846), (2061, 35380), (2196, 33205), (2290, 31842), (2610, 27938), (2745, 26564), (2748, 26535), (3435, 21228), (3538, 20610), (3660, 19923), (4122, 17690), (4580, 15921), (5220, 13969), (5307, 13740), (5490, 13282), (6641, 10980), (6870, 10614), (7076, 10305), (8244, 8845)]