155356520

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{4973}}^1$

素因数の和:5066

約数の個数: 64

約数和(自身を含む): 386778240

約数和(自身を除く): 231421720

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 71, 88, 110, 142, 220, 284, 355, 440, 568, 710, 781, 1420, 1562, 2840, 3124, 3905, 4973, 6248, 7810, 9946, 15620, 19892, 24865, 31240, 39784, 49730, 54703, 99460, 109406, 198920, 218812, 273515, 353083, 437624, 547030, 706166, 1094060, 1412332, 1765415, 2188120, 2824664, 3530830, 3883913, 7061660, 7767826, 14123320, 15535652, 19419565, 31071304, 38839130, 77678260, 155356520]

約数ペア:

[(1, 155356520), (2, 77678260), (4, 38839130), (5, 31071304), (8, 19419565), (10, 15535652), (11, 14123320), (20, 7767826), (22, 7061660), (40, 3883913), (44, 3530830), (55, 2824664), (71, 2188120), (88, 1765415), (110, 1412332), (142, 1094060), (220, 706166), (284, 547030), (355, 437624), (440, 353083), (568, 273515), (710, 218812), (781, 198920), (1420, 109406), (1562, 99460), (2840, 54703), (3124, 49730), (3905, 39784), (4973, 31240), (6248, 24865), (7810, 19892), (9946, 15620)]