16221440

素因数分解:

$2^8\times 5^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{29}}^1$

素因数の和:92

約数の個数: 144

約数和(自身を含む): 44150400

約数和(自身を除く): 27928960

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 23, 29, 32, 38, 40, 46, 58, 64, 76, 80, 92, 95, 115, 116, 128, 145, 152, 160, 184, 190, 230, 232, 256, 290, 304, 320, 368, 380, 437, 460, 464, 551, 580, 608, 640, 667, 736, 760, 874, 920, 928, 1102, 1160, 1216, 1280, 1334, 1472, 1520, 1748, 1840, 1856, 2185, 2204, 2320, 2432, 2668, 2755, 2944, 3040, 3335, 3496, 3680, 3712, 4370, 4408, 4640, 4864, 5336, 5510, 5888, 6080, 6670, 6992, 7360, 7424, 8740, 8816, 9280, 10672, 11020, 12160, 12673, 13340, 13984, 14720, 17480, 17632, 18560, 21344, 22040, 24320, 25346, 26680, 27968, 29440, 34960, 35264, 37120, 42688, 44080, 50692, 53360, 55936, 63365, 69920, 70528, 85376, 88160, 101384, 106720, 111872, 126730, 139840, 141056, 170752, 176320, 202768, 213440, 253460, 279680, 352640, 405536, 426880, 506920, 559360, 705280, 811072, 853760, 1013840, 1622144, 2027680, 3244288, 4055360, 8110720, 16221440]

約数ペア:

[(1, 16221440), (2, 8110720), (4, 4055360), (5, 3244288), (8, 2027680), (10, 1622144), (16, 1013840), (19, 853760), (20, 811072), (23, 705280), (29, 559360), (32, 506920), (38, 426880), (40, 405536), (46, 352640), (58, 279680), (64, 253460), (76, 213440), (80, 202768), (92, 176320), (95, 170752), (115, 141056), (116, 139840), (128, 126730), (145, 111872), (152, 106720), (160, 101384), (184, 88160), (190, 85376), (230, 70528), (232, 69920), (256, 63365), (290, 55936), (304, 53360), (320, 50692), (368, 44080), (380, 42688), (437, 37120), (460, 35264), (464, 34960), (551, 29440), (580, 27968), (608, 26680), (640, 25346), (667, 24320), (736, 22040), (760, 21344), (874, 18560), (920, 17632), (928, 17480), (1102, 14720), (1160, 13984), (1216, 13340), (1280, 12673), (1334, 12160), (1472, 11020), (1520, 10672), (1748, 9280), (1840, 8816), (1856, 8740), (2185, 7424), (2204, 7360), (2320, 6992), (2432, 6670), (2668, 6080), (2755, 5888), (2944, 5510), (3040, 5336), (3335, 4864), (3496, 4640), (3680, 4408), (3712, 4370)]