990566720

素因数分解:

$2^6\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{21647}}^1$

素因数の和:21688

約数の個数: 112

約数和(自身を含む): 2771290368

約数和(自身を除く): 1780723648

約数列:

[1, 2, 4, 5, 8, 10, 11, 13, 16, 20, 22, 26, 32, 40, 44, 52, 55, 64, 65, 80, 88, 104, 110, 130, 143, 160, 176, 208, 220, 260, 286, 320, 352, 416, 440, 520, 572, 704, 715, 832, 880, 1040, 1144, 1430, 1760, 2080, 2288, 2860, 3520, 4160, 4576, 5720, 9152, 11440, 21647, 22880, 43294, 45760, 86588, 108235, 173176, 216470, 238117, 281411, 346352, 432940, 476234, 562822, 692704, 865880, 952468, 1125644, 1190585, 1385408, 1407055, 1731760, 1904936, 2251288, 2381170, 2814110, 3095521, 3463520, 3809872, 4502576, 4762340, 5628220, 6191042, 6927040, 7619744, 9005152, 9524680, 11256440, 12382084, 15239488, 15477605, 18010304, 19049360, 22512880, 24764168, 30955210, 38098720, 45025760, 49528336, 61910420, 76197440, 90051520, 99056672, 123820840, 198113344, 247641680, 495283360, 990566720]

約数ペア:

[(1, 990566720), (2, 495283360), (4, 247641680), (5, 198113344), (8, 123820840), (10, 99056672), (11, 90051520), (13, 76197440), (16, 61910420), (20, 49528336), (22, 45025760), (26, 38098720), (32, 30955210), (40, 24764168), (44, 22512880), (52, 19049360), (55, 18010304), (64, 15477605), (65, 15239488), (80, 12382084), (88, 11256440), (104, 9524680), (110, 9005152), (130, 7619744), (143, 6927040), (160, 6191042), (176, 5628220), (208, 4762340), (220, 4502576), (260, 3809872), (286, 3463520), (320, 3095521), (352, 2814110), (416, 2381170), (440, 2251288), (520, 1904936), (572, 1731760), (704, 1407055), (715, 1385408), (832, 1190585), (880, 1125644), (1040, 952468), (1144, 865880), (1430, 692704), (1760, 562822), (2080, 476234), (2288, 432940), (2860, 346352), (3520, 281411), (4160, 238117), (4576, 216470), (5720, 173176), (9152, 108235), (11440, 86588), (21647, 45760), (22880, 43294)]