138885760

素因数分解:

$2^7\times 5^1\times {\mathrm{13}}^1\times {\mathrm{16693}}^1$

素因数の和:16725

約数の個数: 64

約数和(自身を含む): 357585480

約数和(自身を除く): 218699720

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 52, 64, 65, 80, 104, 128, 130, 160, 208, 260, 320, 416, 520, 640, 832, 1040, 1664, 2080, 4160, 8320, 16693, 33386, 66772, 83465, 133544, 166930, 217009, 267088, 333860, 434018, 534176, 667720, 868036, 1068352, 1085045, 1335440, 1736072, 2136704, 2170090, 2670880, 3472144, 4340180, 5341760, 6944288, 8680360, 10683520, 13888576, 17360720, 27777152, 34721440, 69442880, 138885760]

約数ペア:

[(1, 138885760), (2, 69442880), (4, 34721440), (5, 27777152), (8, 17360720), (10, 13888576), (13, 10683520), (16, 8680360), (20, 6944288), (26, 5341760), (32, 4340180), (40, 3472144), (52, 2670880), (64, 2170090), (65, 2136704), (80, 1736072), (104, 1335440), (128, 1085045), (130, 1068352), (160, 868036), (208, 667720), (260, 534176), (320, 434018), (416, 333860), (520, 267088), (640, 217009), (832, 166930), (1040, 133544), (1664, 83465), (2080, 66772), (4160, 33386), (8320, 16693)]