20803589120

素因数分解:

$2^{10}\times 5^1\times {\mathrm{31}}^1\times {\mathrm{131071}}^1$

素因数の和:131127

約数の個数: 88

約数和(自身を含む): 51514441728

約数和(自身を除く): 30710852608

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, 992, 1024, 1240, 1280, 1984, 2480, 2560, 3968, 4960, 5120, 7936, 9920, 15872, 19840, 31744, 39680, 79360, 131071, 158720, 262142, 524284, 655355, 1048568, 1310710, 2097136, 2621420, 4063201, 4194272, 5242840, 8126402, 8388544, 10485680, 16252804, 16777088, 20316005, 20971360, 32505608, 33554176, 40632010, 41942720, 65011216, 67108352, 81264020, 83885440, 130022432, 134216704, 162528040, 167770880, 260044864, 325056080, 335541760, 520089728, 650112160, 671083520, 1040179456, 1300224320, 2080358912, 2600448640, 4160717824, 5200897280, 10401794560, 20803589120]

約数ペア:

[(1, 20803589120), (2, 10401794560), (4, 5200897280), (5, 4160717824), (8, 2600448640), (10, 2080358912), (16, 1300224320), (20, 1040179456), (31, 671083520), (32, 650112160), (40, 520089728), (62, 335541760), (64, 325056080), (80, 260044864), (124, 167770880), (128, 162528040), (155, 134216704), (160, 130022432), (248, 83885440), (256, 81264020), (310, 67108352), (320, 65011216), (496, 41942720), (512, 40632010), (620, 33554176), (640, 32505608), (992, 20971360), (1024, 20316005), (1240, 16777088), (1280, 16252804), (1984, 10485680), (2480, 8388544), (2560, 8126402), (3968, 5242840), (4960, 4194272), (5120, 4063201), (7936, 2621420), (9920, 2097136), (15872, 1310710), (19840, 1048568), (31744, 655355), (39680, 524284), (79360, 262142), (131071, 158720)]