28044475

素因数分解:

$5^2\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{151}}^1$

素因数の和:220

約数の個数: 48

約数和(自身を含む): 40711680

約数和(自身を除く): 12667205

約数列:

[1, 5, 17, 19, 23, 25, 85, 95, 115, 151, 323, 391, 425, 437, 475, 575, 755, 1615, 1955, 2185, 2567, 2869, 3473, 3775, 7429, 8075, 9775, 10925, 12835, 14345, 17365, 37145, 48773, 59041, 64175, 65987, 71725, 86825, 185725, 243865, 295205, 329935, 1121779, 1219325, 1476025, 1649675, 5608895, 28044475]

約数ペア:

[(1, 28044475), (5, 5608895), (17, 1649675), (19, 1476025), (23, 1219325), (25, 1121779), (85, 329935), (95, 295205), (115, 243865), (151, 185725), (323, 86825), (391, 71725), (425, 65987), (437, 64175), (475, 59041), (575, 48773), (755, 37145), (1615, 17365), (1955, 14345), (2185, 12835), (2567, 10925), (2869, 9775), (3473, 8075), (3775, 7429)]