28699975

素因数分解:

$5^2\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{37}}^1\times {\mathrm{71}}^1$

素因数の和:160

約数の個数: 48

約数和(自身を含む): 40711680

約数和(自身を除く): 12011705

約数列:

[1, 5, 19, 23, 25, 37, 71, 95, 115, 185, 355, 437, 475, 575, 703, 851, 925, 1349, 1633, 1775, 2185, 2627, 3515, 4255, 6745, 8165, 10925, 13135, 16169, 17575, 21275, 31027, 33725, 40825, 49913, 60421, 65675, 80845, 155135, 249565, 302105, 404225, 775675, 1147999, 1247825, 1510525, 5739995, 28699975]

約数ペア:

[(1, 28699975), (5, 5739995), (19, 1510525), (23, 1247825), (25, 1147999), (37, 775675), (71, 404225), (95, 302105), (115, 249565), (185, 155135), (355, 80845), (437, 65675), (475, 60421), (575, 49913), (703, 40825), (851, 33725), (925, 31027), (1349, 21275), (1633, 17575), (1775, 16169), (2185, 13135), (2627, 10925), (3515, 8165), (4255, 6745)]