21474672640

素因数分解:

$2^{15}\times 5^1\times {\mathrm{131071}}^1$

素因数の和:131106

約数の個数: 64

約数和(自身を含む): 51538821120

約数和(自身を除く): 30064148480

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 512, 640, 1024, 1280, 2048, 2560, 4096, 5120, 8192, 10240, 16384, 20480, 32768, 40960, 81920, 131071, 163840, 262142, 524284, 655355, 1048568, 1310710, 2097136, 2621420, 4194272, 5242840, 8388544, 10485680, 16777088, 20971360, 33554176, 41942720, 67108352, 83885440, 134216704, 167770880, 268433408, 335541760, 536866816, 671083520, 1073733632, 1342167040, 2147467264, 2684334080, 4294934528, 5368668160, 10737336320, 21474672640]

約数ペア:

[(1, 21474672640), (2, 10737336320), (4, 5368668160), (5, 4294934528), (8, 2684334080), (10, 2147467264), (16, 1342167040), (20, 1073733632), (32, 671083520), (40, 536866816), (64, 335541760), (80, 268433408), (128, 167770880), (160, 134216704), (256, 83885440), (320, 67108352), (512, 41942720), (640, 33554176), (1024, 20971360), (1280, 16777088), (2048, 10485680), (2560, 8388544), (4096, 5242840), (5120, 4194272), (8192, 2621420), (10240, 2097136), (16384, 1310710), (20480, 1048568), (32768, 655355), (40960, 524284), (81920, 262142), (131071, 163840)]