254155520

素因数分解:

$2^8\times 5^1\times {\mathrm{23}}^1\times {\mathrm{89}}^1\times {\mathrm{97}}^1$

素因数の和:230

約数の個数: 144

約数和(自身を含む): 649010880

約数和(自身を除く): 394855360

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 23, 32, 40, 46, 64, 80, 89, 92, 97, 115, 128, 160, 178, 184, 194, 230, 256, 320, 356, 368, 388, 445, 460, 485, 640, 712, 736, 776, 890, 920, 970, 1280, 1424, 1472, 1552, 1780, 1840, 1940, 2047, 2231, 2848, 2944, 3104, 3560, 3680, 3880, 4094, 4462, 5696, 5888, 6208, 7120, 7360, 7760, 8188, 8633, 8924, 10235, 11155, 11392, 12416, 14240, 14720, 15520, 16376, 17266, 17848, 20470, 22310, 22784, 24832, 28480, 29440, 31040, 32752, 34532, 35696, 40940, 43165, 44620, 56960, 62080, 65504, 69064, 71392, 81880, 86330, 89240, 113920, 124160, 131008, 138128, 142784, 163760, 172660, 178480, 198559, 262016, 276256, 285568, 327520, 345320, 356960, 397118, 524032, 552512, 571136, 655040, 690640, 713920, 794236, 992795, 1105024, 1310080, 1381280, 1427840, 1588472, 1985590, 2210048, 2620160, 2762560, 2855680, 3176944, 3971180, 5525120, 6353888, 7942360, 11050240, 12707776, 15884720, 25415552, 31769440, 50831104, 63538880, 127077760, 254155520]

約数ペア:

[(1, 254155520), (2, 127077760), (4, 63538880), (5, 50831104), (8, 31769440), (10, 25415552), (16, 15884720), (20, 12707776), (23, 11050240), (32, 7942360), (40, 6353888), (46, 5525120), (64, 3971180), (80, 3176944), (89, 2855680), (92, 2762560), (97, 2620160), (115, 2210048), (128, 1985590), (160, 1588472), (178, 1427840), (184, 1381280), (194, 1310080), (230, 1105024), (256, 992795), (320, 794236), (356, 713920), (368, 690640), (388, 655040), (445, 571136), (460, 552512), (485, 524032), (640, 397118), (712, 356960), (736, 345320), (776, 327520), (890, 285568), (920, 276256), (970, 262016), (1280, 198559), (1424, 178480), (1472, 172660), (1552, 163760), (1780, 142784), (1840, 138128), (1940, 131008), (2047, 124160), (2231, 113920), (2848, 89240), (2944, 86330), (3104, 81880), (3560, 71392), (3680, 69064), (3880, 65504), (4094, 62080), (4462, 56960), (5696, 44620), (5888, 43165), (6208, 40940), (7120, 35696), (7360, 34532), (7760, 32752), (8188, 31040), (8633, 29440), (8924, 28480), (10235, 24832), (11155, 22784), (11392, 22310), (12416, 20470), (14240, 17848), (14720, 17266), (15520, 16376)]