638804800

素因数分解:

$2^6\times 5^2\times {\mathrm{59}}^1\times {\mathrm{67}}^1\times {\mathrm{101}}^1$

素因数の和:249

約数の個数: 168

約数和(自身を含む): 1638421920

約数和(自身を除く): 999617120

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 59, 64, 67, 80, 100, 101, 118, 134, 160, 200, 202, 236, 268, 295, 320, 335, 400, 404, 472, 505, 536, 590, 670, 800, 808, 944, 1010, 1072, 1180, 1340, 1475, 1600, 1616, 1675, 1888, 2020, 2144, 2360, 2525, 2680, 2950, 3232, 3350, 3776, 3953, 4040, 4288, 4720, 5050, 5360, 5900, 5959, 6464, 6700, 6767, 7906, 8080, 9440, 10100, 10720, 11800, 11918, 13400, 13534, 15812, 16160, 18880, 19765, 20200, 21440, 23600, 23836, 26800, 27068, 29795, 31624, 32320, 33835, 39530, 40400, 47200, 47672, 53600, 54136, 59590, 63248, 67670, 79060, 80800, 94400, 95344, 98825, 107200, 108272, 119180, 126496, 135340, 148975, 158120, 161600, 169175, 190688, 197650, 216544, 238360, 252992, 270680, 297950, 316240, 338350, 381376, 395300, 399253, 433088, 476720, 541360, 595900, 632480, 676700, 790600, 798506, 953440, 1082720, 1191800, 1264960, 1353400, 1581200, 1597012, 1906880, 1996265, 2165440, 2383600, 2706800, 3162400, 3194024, 3992530, 4767200, 5413600, 6324800, 6388048, 7985060, 9534400, 9981325, 10827200, 12776096, 15970120, 19962650, 25552192, 31940240, 39925300, 63880480, 79850600, 127760960, 159701200, 319402400, 638804800]

約数ペア:

[(1, 638804800), (2, 319402400), (4, 159701200), (5, 127760960), (8, 79850600), (10, 63880480), (16, 39925300), (20, 31940240), (25, 25552192), (32, 19962650), (40, 15970120), (50, 12776096), (59, 10827200), (64, 9981325), (67, 9534400), (80, 7985060), (100, 6388048), (101, 6324800), (118, 5413600), (134, 4767200), (160, 3992530), (200, 3194024), (202, 3162400), (236, 2706800), (268, 2383600), (295, 2165440), (320, 1996265), (335, 1906880), (400, 1597012), (404, 1581200), (472, 1353400), (505, 1264960), (536, 1191800), (590, 1082720), (670, 953440), (800, 798506), (808, 790600), (944, 676700), (1010, 632480), (1072, 595900), (1180, 541360), (1340, 476720), (1475, 433088), (1600, 399253), (1616, 395300), (1675, 381376), (1888, 338350), (2020, 316240), (2144, 297950), (2360, 270680), (2525, 252992), (2680, 238360), (2950, 216544), (3232, 197650), (3350, 190688), (3776, 169175), (3953, 161600), (4040, 158120), (4288, 148975), (4720, 135340), (5050, 126496), (5360, 119180), (5900, 108272), (5959, 107200), (6464, 98825), (6700, 95344), (6767, 94400), (7906, 80800), (8080, 79060), (9440, 67670), (10100, 63248), (10720, 59590), (11800, 54136), (11918, 53600), (13400, 47672), (13534, 47200), (15812, 40400), (16160, 39530), (18880, 33835), (19765, 32320), (20200, 31624), (21440, 29795), (23600, 27068), (23836, 26800)]