31267840

素因数分解:

$2^{10}\times 5^1\times {\mathrm{31}}^1\times {\mathrm{197}}^1$

素因数の和:253

約数の個数: 88

約数和(自身を含む): 77818752

約数和(自身を除く): 46550912

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 62, 64, 80, 124, 128, 155, 160, 197, 248, 256, 310, 320, 394, 496, 512, 620, 640, 788, 985, 992, 1024, 1240, 1280, 1576, 1970, 1984, 2480, 2560, 3152, 3940, 3968, 4960, 5120, 6107, 6304, 7880, 7936, 9920, 12214, 12608, 15760, 15872, 19840, 24428, 25216, 30535, 31520, 31744, 39680, 48856, 50432, 61070, 63040, 79360, 97712, 100864, 122140, 126080, 158720, 195424, 201728, 244280, 252160, 390848, 488560, 504320, 781696, 977120, 1008640, 1563392, 1954240, 3126784, 3908480, 6253568, 7816960, 15633920, 31267840]

約数ペア:

[(1, 31267840), (2, 15633920), (4, 7816960), (5, 6253568), (8, 3908480), (10, 3126784), (16, 1954240), (20, 1563392), (31, 1008640), (32, 977120), (40, 781696), (62, 504320), (64, 488560), (80, 390848), (124, 252160), (128, 244280), (155, 201728), (160, 195424), (197, 158720), (248, 126080), (256, 122140), (310, 100864), (320, 97712), (394, 79360), (496, 63040), (512, 61070), (620, 50432), (640, 48856), (788, 39680), (985, 31744), (992, 31520), (1024, 30535), (1240, 25216), (1280, 24428), (1576, 19840), (1970, 15872), (1984, 15760), (2480, 12608), (2560, 12214), (3152, 9920), (3940, 7936), (3968, 7880), (4960, 6304), (5120, 6107)]