148720640

素因数分解:

$2^{10}\times 5^1\times {\mathrm{31}}^1\times {\mathrm{937}}^1$

素因数の和:993

約数の個数: 88

約数和(自身を含む): 368656512

約数和(自身を除く): 219935872

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 62, 64, 80, 124, 128, 155, 160, 248, 256, 310, 320, 496, 512, 620, 640, 937, 992, 1024, 1240, 1280, 1874, 1984, 2480, 2560, 3748, 3968, 4685, 4960, 5120, 7496, 7936, 9370, 9920, 14992, 15872, 18740, 19840, 29047, 29984, 31744, 37480, 39680, 58094, 59968, 74960, 79360, 116188, 119936, 145235, 149920, 158720, 232376, 239872, 290470, 299840, 464752, 479744, 580940, 599680, 929504, 959488, 1161880, 1199360, 1859008, 2323760, 2398720, 3718016, 4647520, 4797440, 7436032, 9295040, 14872064, 18590080, 29744128, 37180160, 74360320, 148720640]

約数ペア:

[(1, 148720640), (2, 74360320), (4, 37180160), (5, 29744128), (8, 18590080), (10, 14872064), (16, 9295040), (20, 7436032), (31, 4797440), (32, 4647520), (40, 3718016), (62, 2398720), (64, 2323760), (80, 1859008), (124, 1199360), (128, 1161880), (155, 959488), (160, 929504), (248, 599680), (256, 580940), (310, 479744), (320, 464752), (496, 299840), (512, 290470), (620, 239872), (640, 232376), (937, 158720), (992, 149920), (1024, 145235), (1240, 119936), (1280, 116188), (1874, 79360), (1984, 74960), (2480, 59968), (2560, 58094), (3748, 39680), (3968, 37480), (4685, 31744), (4960, 29984), (5120, 29047), (7496, 19840), (7936, 18740), (9370, 15872), (9920, 14992)]