72140120

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{138731}}^1$

素因数の和:138755

約数の個数: 32

約数和(自身を含む): 174802320

約数和(自身を除く): 102662200

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 138731, 277462, 554924, 693655, 1109848, 1387310, 1803503, 2774620, 3607006, 5549240, 7214012, 9017515, 14428024, 18035030, 36070060, 72140120]

約数ペア:

[(1, 72140120), (2, 36070060), (4, 18035030), (5, 14428024), (8, 9017515), (10, 7214012), (13, 5549240), (20, 3607006), (26, 2774620), (40, 1803503), (52, 1387310), (65, 1109848), (104, 693655), (130, 554924), (260, 277462), (520, 138731)]