417393920

素因数分解:

$2^8\times 5^1\times {\mathrm{31}}^1\times {\mathrm{67}}^1\times {\mathrm{157}}^1$

素因数の和:276

約数の個数: 144

約数和(自身を含む): 1054115328

約数和(自身を除く): 636721408

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 62, 64, 67, 80, 124, 128, 134, 155, 157, 160, 248, 256, 268, 310, 314, 320, 335, 496, 536, 620, 628, 640, 670, 785, 992, 1072, 1240, 1256, 1280, 1340, 1570, 1984, 2077, 2144, 2480, 2512, 2680, 3140, 3968, 4154, 4288, 4867, 4960, 5024, 5360, 6280, 7936, 8308, 8576, 9734, 9920, 10048, 10385, 10519, 10720, 12560, 16616, 17152, 19468, 19840, 20096, 20770, 21038, 21440, 24335, 25120, 33232, 38936, 39680, 40192, 41540, 42076, 42880, 48670, 50240, 52595, 66464, 77872, 83080, 84152, 85760, 97340, 100480, 105190, 132928, 155744, 166160, 168304, 194680, 200960, 210380, 265856, 311488, 326089, 332320, 336608, 389360, 420760, 531712, 622976, 652178, 664640, 673216, 778720, 841520, 1245952, 1304356, 1329280, 1346432, 1557440, 1630445, 1683040, 2608712, 2658560, 2692864, 3114880, 3260890, 3366080, 5217424, 6229760, 6521780, 6732160, 10434848, 13043560, 13464320, 20869696, 26087120, 41739392, 52174240, 83478784, 104348480, 208696960, 417393920]

約数ペア:

[(1, 417393920), (2, 208696960), (4, 104348480), (5, 83478784), (8, 52174240), (10, 41739392), (16, 26087120), (20, 20869696), (31, 13464320), (32, 13043560), (40, 10434848), (62, 6732160), (64, 6521780), (67, 6229760), (80, 5217424), (124, 3366080), (128, 3260890), (134, 3114880), (155, 2692864), (157, 2658560), (160, 2608712), (248, 1683040), (256, 1630445), (268, 1557440), (310, 1346432), (314, 1329280), (320, 1304356), (335, 1245952), (496, 841520), (536, 778720), (620, 673216), (628, 664640), (640, 652178), (670, 622976), (785, 531712), (992, 420760), (1072, 389360), (1240, 336608), (1256, 332320), (1280, 326089), (1340, 311488), (1570, 265856), (1984, 210380), (2077, 200960), (2144, 194680), (2480, 168304), (2512, 166160), (2680, 155744), (3140, 132928), (3968, 105190), (4154, 100480), (4288, 97340), (4867, 85760), (4960, 84152), (5024, 83080), (5360, 77872), (6280, 66464), (7936, 52595), (8308, 50240), (8576, 48670), (9734, 42880), (9920, 42076), (10048, 41540), (10385, 40192), (10519, 39680), (10720, 38936), (12560, 33232), (16616, 25120), (17152, 24335), (19468, 21440), (19840, 21038), (20096, 20770)]