27781520

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{26713}}^1$

素因数の和:26739

約数の個数: 40

約数和(自身を含む): 69563256

約数和(自身を除く): 41781736

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 208, 260, 520, 1040, 26713, 53426, 106852, 133565, 213704, 267130, 347269, 427408, 534260, 694538, 1068520, 1389076, 1736345, 2137040, 2778152, 3472690, 5556304, 6945380, 13890760, 27781520]

約数ペア:

[(1, 27781520), (2, 13890760), (4, 6945380), (5, 5556304), (8, 3472690), (10, 2778152), (13, 2137040), (16, 1736345), (20, 1389076), (26, 1068520), (40, 694538), (52, 534260), (65, 427408), (80, 347269), (104, 267130), (130, 213704), (208, 133565), (260, 106852), (520, 53426), (1040, 26713)]