28380705

素因数分解:

$3^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{53}}^1\times {\mathrm{1231}}^1$

素因数の和:1321

約数の個数: 32

約数和(自身を含む): 47900160

約数和(自身を除く): 19519455

約数列:

[1, 3, 5, 15, 29, 53, 87, 145, 159, 265, 435, 795, 1231, 1537, 3693, 4611, 6155, 7685, 18465, 23055, 35699, 65243, 107097, 178495, 195729, 326215, 535485, 978645, 1892047, 5676141, 9460235, 28380705]

約数ペア:

[(1, 28380705), (3, 9460235), (5, 5676141), (15, 1892047), (29, 978645), (53, 535485), (87, 326215), (145, 195729), (159, 178495), (265, 107097), (435, 65243), (795, 35699), (1231, 23055), (1537, 18465), (3693, 7685), (4611, 6155)]