19246975

素因数分解:

$5^2\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{179}}^1$

素因数の和:240

約数の個数: 48

約数和(自身を含む): 28926720

約数和(自身を除く): 9679745

約数列:

[1, 5, 11, 17, 23, 25, 55, 85, 115, 179, 187, 253, 275, 391, 425, 575, 895, 935, 1265, 1955, 1969, 3043, 4117, 4301, 4475, 4675, 6325, 9775, 9845, 15215, 20585, 21505, 33473, 45287, 49225, 69989, 76075, 102925, 107525, 167365, 226435, 349945, 769879, 836825, 1132175, 1749725, 3849395, 19246975]

約数ペア:

[(1, 19246975), (5, 3849395), (11, 1749725), (17, 1132175), (23, 836825), (25, 769879), (55, 349945), (85, 226435), (115, 167365), (179, 107525), (187, 102925), (253, 76075), (275, 69989), (391, 49225), (425, 45287), (575, 33473), (895, 21505), (935, 20585), (1265, 15215), (1955, 9845), (1969, 9775), (3043, 6325), (4117, 4675), (4301, 4475)]