78918400

素因数分解:

$2^8\times 5^2\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{59}}^1$

素因数の和:115

約数の個数: 216

約数和(自身を含む): 228110400

約数和(自身を除く): 149192000

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 19, 20, 22, 25, 32, 38, 40, 44, 50, 55, 59, 64, 76, 80, 88, 95, 100, 110, 118, 128, 152, 160, 176, 190, 200, 209, 220, 236, 256, 275, 295, 304, 320, 352, 380, 400, 418, 440, 472, 475, 550, 590, 608, 640, 649, 704, 760, 800, 836, 880, 944, 950, 1045, 1100, 1121, 1180, 1216, 1280, 1298, 1408, 1475, 1520, 1600, 1672, 1760, 1888, 1900, 2090, 2200, 2242, 2360, 2432, 2596, 2816, 2950, 3040, 3200, 3245, 3344, 3520, 3776, 3800, 4180, 4400, 4484, 4720, 4864, 5192, 5225, 5605, 5900, 6080, 6400, 6490, 6688, 7040, 7552, 7600, 8360, 8800, 8968, 9440, 10384, 10450, 11210, 11800, 12160, 12331, 12980, 13376, 14080, 15104, 15200, 16225, 16720, 17600, 17936, 18880, 20768, 20900, 22420, 23600, 24320, 24662, 25960, 26752, 28025, 30400, 32450, 33440, 35200, 35872, 37760, 41536, 41800, 44840, 47200, 49324, 51920, 53504, 56050, 60800, 61655, 64900, 66880, 70400, 71744, 75520, 83072, 83600, 89680, 94400, 98648, 103840, 112100, 121600, 123310, 129800, 133760, 143488, 166144, 167200, 179360, 188800, 197296, 207680, 224200, 246620, 259600, 267520, 286976, 308275, 334400, 358720, 377600, 394592, 415360, 448400, 493240, 519200, 616550, 668800, 717440, 789184, 830720, 896800, 986480, 1038400, 1233100, 1337600, 1434880, 1578368, 1793600, 1972960, 2076800, 2466200, 3156736, 3587200, 3945920, 4153600, 4932400, 7174400, 7891840, 9864800, 15783680, 19729600, 39459200, 78918400]

約数ペア:

[(1, 78918400), (2, 39459200), (4, 19729600), (5, 15783680), (8, 9864800), (10, 7891840), (11, 7174400), (16, 4932400), (19, 4153600), (20, 3945920), (22, 3587200), (25, 3156736), (32, 2466200), (38, 2076800), (40, 1972960), (44, 1793600), (50, 1578368), (55, 1434880), (59, 1337600), (64, 1233100), (76, 1038400), (80, 986480), (88, 896800), (95, 830720), (100, 789184), (110, 717440), (118, 668800), (128, 616550), (152, 519200), (160, 493240), (176, 448400), (190, 415360), (200, 394592), (209, 377600), (220, 358720), (236, 334400), (256, 308275), (275, 286976), (295, 267520), (304, 259600), (320, 246620), (352, 224200), (380, 207680), (400, 197296), (418, 188800), (440, 179360), (472, 167200), (475, 166144), (550, 143488), (590, 133760), (608, 129800), (640, 123310), (649, 121600), (704, 112100), (760, 103840), (800, 98648), (836, 94400), (880, 89680), (944, 83600), (950, 83072), (1045, 75520), (1100, 71744), (1121, 70400), (1180, 66880), (1216, 64900), (1280, 61655), (1298, 60800), (1408, 56050), (1475, 53504), (1520, 51920), (1600, 49324), (1672, 47200), (1760, 44840), (1888, 41800), (1900, 41536), (2090, 37760), (2200, 35872), (2242, 35200), (2360, 33440), (2432, 32450), (2596, 30400), (2816, 28025), (2950, 26752), (3040, 25960), (3200, 24662), (3245, 24320), (3344, 23600), (3520, 22420), (3776, 20900), (3800, 20768), (4180, 18880), (4400, 17936), (4484, 17600), (4720, 16720), (4864, 16225), (5192, 15200), (5225, 15104), (5605, 14080), (5900, 13376), (6080, 12980), (6400, 12331), (6490, 12160), (6688, 11800), (7040, 11210), (7552, 10450), (7600, 10384), (8360, 9440), (8800, 8968)]