72880640

素因数分解:

$2^9\times 5^1\times 7^3\times {\mathrm{83}}^1$

素因数の和:127

約数の個数: 160

約数和(自身を含む): 206236800

約数和(自身を除く): 133356160

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 49, 56, 64, 70, 80, 83, 98, 112, 128, 140, 160, 166, 196, 224, 245, 256, 280, 320, 332, 343, 392, 415, 448, 490, 512, 560, 581, 640, 664, 686, 784, 830, 896, 980, 1120, 1162, 1280, 1328, 1372, 1568, 1660, 1715, 1792, 1960, 2240, 2324, 2560, 2656, 2744, 2905, 3136, 3320, 3430, 3584, 3920, 4067, 4480, 4648, 5312, 5488, 5810, 6272, 6640, 6860, 7840, 8134, 8960, 9296, 10624, 10976, 11620, 12544, 13280, 13720, 15680, 16268, 17920, 18592, 20335, 21248, 21952, 23240, 25088, 26560, 27440, 28469, 31360, 32536, 37184, 40670, 42496, 43904, 46480, 53120, 54880, 56938, 62720, 65072, 74368, 81340, 87808, 92960, 106240, 109760, 113876, 125440, 130144, 142345, 148736, 162680, 175616, 185920, 212480, 219520, 227752, 260288, 284690, 297472, 325360, 371840, 439040, 455504, 520576, 569380, 650720, 743680, 878080, 911008, 1041152, 1138760, 1301440, 1487360, 1822016, 2082304, 2277520, 2602880, 3644032, 4555040, 5205760, 7288064, 9110080, 10411520, 14576128, 18220160, 36440320, 72880640]

約数ペア:

[(1, 72880640), (2, 36440320), (4, 18220160), (5, 14576128), (7, 10411520), (8, 9110080), (10, 7288064), (14, 5205760), (16, 4555040), (20, 3644032), (28, 2602880), (32, 2277520), (35, 2082304), (40, 1822016), (49, 1487360), (56, 1301440), (64, 1138760), (70, 1041152), (80, 911008), (83, 878080), (98, 743680), (112, 650720), (128, 569380), (140, 520576), (160, 455504), (166, 439040), (196, 371840), (224, 325360), (245, 297472), (256, 284690), (280, 260288), (320, 227752), (332, 219520), (343, 212480), (392, 185920), (415, 175616), (448, 162680), (490, 148736), (512, 142345), (560, 130144), (581, 125440), (640, 113876), (664, 109760), (686, 106240), (784, 92960), (830, 87808), (896, 81340), (980, 74368), (1120, 65072), (1162, 62720), (1280, 56938), (1328, 54880), (1372, 53120), (1568, 46480), (1660, 43904), (1715, 42496), (1792, 40670), (1960, 37184), (2240, 32536), (2324, 31360), (2560, 28469), (2656, 27440), (2744, 26560), (2905, 25088), (3136, 23240), (3320, 21952), (3430, 21248), (3584, 20335), (3920, 18592), (4067, 17920), (4480, 16268), (4648, 15680), (5312, 13720), (5488, 13280), (5810, 12544), (6272, 11620), (6640, 10976), (6860, 10624), (7840, 9296), (8134, 8960)]