27428720

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{439}}^1$

素因数の和:534

約数の個数: 80

約数和(自身を含む): 70709760

約数和(自身を除く): 43281040

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 71, 80, 88, 110, 142, 176, 220, 284, 355, 439, 440, 568, 710, 781, 878, 880, 1136, 1420, 1562, 1756, 2195, 2840, 3124, 3512, 3905, 4390, 4829, 5680, 6248, 7024, 7810, 8780, 9658, 12496, 15620, 17560, 19316, 24145, 31169, 31240, 35120, 38632, 48290, 62338, 62480, 77264, 96580, 124676, 155845, 193160, 249352, 311690, 342859, 386320, 498704, 623380, 685718, 1246760, 1371436, 1714295, 2493520, 2742872, 3428590, 5485744, 6857180, 13714360, 27428720]

約数ペア:

[(1, 27428720), (2, 13714360), (4, 6857180), (5, 5485744), (8, 3428590), (10, 2742872), (11, 2493520), (16, 1714295), (20, 1371436), (22, 1246760), (40, 685718), (44, 623380), (55, 498704), (71, 386320), (80, 342859), (88, 311690), (110, 249352), (142, 193160), (176, 155845), (220, 124676), (284, 96580), (355, 77264), (439, 62480), (440, 62338), (568, 48290), (710, 38632), (781, 35120), (878, 31240), (880, 31169), (1136, 24145), (1420, 19316), (1562, 17560), (1756, 15620), (2195, 12496), (2840, 9658), (3124, 8780), (3512, 7810), (3905, 7024), (4390, 6248), (4829, 5680)]