39600640

素因数分解:

$2^9\times 5^1\times {\mathrm{31}}^1\times {\mathrm{499}}^1$

素因数の和:553

約数の個数: 80

約数和(自身を含む): 98208000

約数和(自身を除く): 58607360

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, 499, 512, 620, 640, 992, 998, 1240, 1280, 1984, 1996, 2480, 2495, 2560, 3968, 3992, 4960, 4990, 7936, 7984, 9920, 9980, 15469, 15872, 15968, 19840, 19960, 30938, 31936, 39680, 39920, 61876, 63872, 77345, 79360, 79840, 123752, 127744, 154690, 159680, 247504, 255488, 309380, 319360, 495008, 618760, 638720, 990016, 1237520, 1277440, 1980032, 2475040, 3960064, 4950080, 7920128, 9900160, 19800320, 39600640]

約数ペア:

[(1, 39600640), (2, 19800320), (4, 9900160), (5, 7920128), (8, 4950080), (10, 3960064), (16, 2475040), (20, 1980032), (31, 1277440), (32, 1237520), (40, 990016), (62, 638720), (64, 618760), (80, 495008), (124, 319360), (128, 309380), (155, 255488), (160, 247504), (248, 159680), (256, 154690), (310, 127744), (320, 123752), (496, 79840), (499, 79360), (512, 77345), (620, 63872), (640, 61876), (992, 39920), (998, 39680), (1240, 31936), (1280, 30938), (1984, 19960), (1996, 19840), (2480, 15968), (2495, 15872), (2560, 15469), (3968, 9980), (3992, 9920), (4960, 7984), (4990, 7936)]