209508725

素因数分解:

$5^2\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{127}}^1\times {\mathrm{151}}^1$

素因数の和:330

約数の個数: 48

約数和(自身を含む): 289505280

約数和(自身を除く): 79996555

約数列:

[1, 5, 19, 23, 25, 95, 115, 127, 151, 437, 475, 575, 635, 755, 2185, 2413, 2869, 2921, 3175, 3473, 3775, 10925, 12065, 14345, 14605, 17365, 19177, 55499, 60325, 65987, 71725, 73025, 86825, 95885, 277495, 329935, 364363, 441071, 479425, 1387475, 1649675, 1821815, 2205355, 8380349, 9109075, 11026775, 41901745, 209508725]

約数ペア:

[(1, 209508725), (5, 41901745), (19, 11026775), (23, 9109075), (25, 8380349), (95, 2205355), (115, 1821815), (127, 1649675), (151, 1387475), (437, 479425), (475, 441071), (575, 364363), (635, 329935), (755, 277495), (2185, 95885), (2413, 86825), (2869, 73025), (2921, 71725), (3175, 65987), (3473, 60325), (3775, 55499), (10925, 19177), (12065, 17365), (14345, 14605)]