19775675

素因数分解:

$5^2\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{79}}^1$

素因数の和:156

約数の個数: 48

約数和(自身を含む): 28569600

約数和(自身を除く): 8793925

約数列:

[1, 5, 17, 19, 25, 31, 79, 85, 95, 155, 323, 395, 425, 475, 527, 589, 775, 1343, 1501, 1615, 1975, 2449, 2635, 2945, 6715, 7505, 8075, 10013, 12245, 13175, 14725, 25517, 33575, 37525, 41633, 46531, 50065, 61225, 127585, 208165, 232655, 250325, 637925, 791027, 1040825, 1163275, 3955135, 19775675]

約数ペア:

[(1, 19775675), (5, 3955135), (17, 1163275), (19, 1040825), (25, 791027), (31, 637925), (79, 250325), (85, 232655), (95, 208165), (155, 127585), (323, 61225), (395, 50065), (425, 46531), (475, 41633), (527, 37525), (589, 33575), (775, 25517), (1343, 14725), (1501, 13175), (1615, 12245), (1975, 10013), (2449, 8075), (2635, 7505), (2945, 6715)]