19729600

素因数分解:

$2^6\times 5^2\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{59}}^1$

素因数の和:111

約数の個数: 168

約数和(自身を含む): 56692800

約数和(自身を除く): 36963200

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, 152, 160, 176, 190, 200, 209, 220, 236, 275, 295, 304, 320, 352, 380, 400, 418, 440, 472, 475, 550, 590, 608, 649, 704, 760, 800, 836, 880, 944, 950, 1045, 1100, 1121, 1180, 1216, 1298, 1475, 1520, 1600, 1672, 1760, 1888, 1900, 2090, 2200, 2242, 2360, 2596, 2950, 3040, 3245, 3344, 3520, 3776, 3800, 4180, 4400, 4484, 4720, 5192, 5225, 5605, 5900, 6080, 6490, 6688, 7600, 8360, 8800, 8968, 9440, 10384, 10450, 11210, 11800, 12331, 12980, 13376, 15200, 16225, 16720, 17600, 17936, 18880, 20768, 20900, 22420, 23600, 24662, 25960, 28025, 30400, 32450, 33440, 35872, 41536, 41800, 44840, 47200, 49324, 51920, 56050, 61655, 64900, 66880, 71744, 83600, 89680, 94400, 98648, 103840, 112100, 123310, 129800, 167200, 179360, 197296, 207680, 224200, 246620, 259600, 308275, 334400, 358720, 394592, 448400, 493240, 519200, 616550, 789184, 896800, 986480, 1038400, 1233100, 1793600, 1972960, 2466200, 3945920, 4932400, 9864800, 19729600]

約数ペア:

[(1, 19729600), (2, 9864800), (4, 4932400), (5, 3945920), (8, 2466200), (10, 1972960), (11, 1793600), (16, 1233100), (19, 1038400), (20, 986480), (22, 896800), (25, 789184), (32, 616550), (38, 519200), (40, 493240), (44, 448400), (50, 394592), (55, 358720), (59, 334400), (64, 308275), (76, 259600), (80, 246620), (88, 224200), (95, 207680), (100, 197296), (110, 179360), (118, 167200), (152, 129800), (160, 123310), (176, 112100), (190, 103840), (200, 98648), (209, 94400), (220, 89680), (236, 83600), (275, 71744), (295, 66880), (304, 64900), (320, 61655), (352, 56050), (380, 51920), (400, 49324), (418, 47200), (440, 44840), (472, 41800), (475, 41536), (550, 35872), (590, 33440), (608, 32450), (649, 30400), (704, 28025), (760, 25960), (800, 24662), (836, 23600), (880, 22420), (944, 20900), (950, 20768), (1045, 18880), (1100, 17936), (1121, 17600), (1180, 16720), (1216, 16225), (1298, 15200), (1475, 13376), (1520, 12980), (1600, 12331), (1672, 11800), (1760, 11210), (1888, 10450), (1900, 10384), (2090, 9440), (2200, 8968), (2242, 8800), (2360, 8360), (2596, 7600), (2950, 6688), (3040, 6490), (3245, 6080), (3344, 5900), (3520, 5605), (3776, 5225), (3800, 5192), (4180, 4720), (4400, 4484)]