19106725

素因数分解:

$5^2\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{61}}^1\times {\mathrm{67}}^1$

素因数の和:166

約数の個数: 48

約数和(自身を含む): 28230336

約数和(自身を除く): 9123611

約数列:

[1, 5, 11, 17, 25, 55, 61, 67, 85, 187, 275, 305, 335, 425, 671, 737, 935, 1037, 1139, 1525, 1675, 3355, 3685, 4087, 4675, 5185, 5695, 11407, 12529, 16775, 18425, 20435, 25925, 28475, 44957, 57035, 62645, 69479, 102175, 224785, 285175, 313225, 347395, 764269, 1123925, 1736975, 3821345, 19106725]

約数ペア:

[(1, 19106725), (5, 3821345), (11, 1736975), (17, 1123925), (25, 764269), (55, 347395), (61, 313225), (67, 285175), (85, 224785), (187, 102175), (275, 69479), (305, 62645), (335, 57035), (425, 44957), (671, 28475), (737, 25925), (935, 20435), (1037, 18425), (1139, 16775), (1525, 12529), (1675, 11407), (3355, 5695), (3685, 5185), (4087, 4675)]