19566675

素因数分解:

$3^2\times 5^2\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{199}}^1$

素因数の和:257

約数の個数: 72

約数和(自身を含む): 38688000

約数和(自身を除く): 19121325

約数列:

[1, 3, 5, 9, 15, 19, 23, 25, 45, 57, 69, 75, 95, 115, 171, 199, 207, 225, 285, 345, 437, 475, 575, 597, 855, 995, 1035, 1311, 1425, 1725, 1791, 2185, 2985, 3781, 3933, 4275, 4577, 4975, 5175, 6555, 8955, 10925, 11343, 13731, 14925, 18905, 19665, 22885, 32775, 34029, 41193, 44775, 56715, 68655, 86963, 94525, 98325, 114425, 170145, 205965, 260889, 283575, 343275, 434815, 782667, 850725, 1029825, 1304445, 2174075, 3913335, 6522225, 19566675]

約数ペア:

[(1, 19566675), (3, 6522225), (5, 3913335), (9, 2174075), (15, 1304445), (19, 1029825), (23, 850725), (25, 782667), (45, 434815), (57, 343275), (69, 283575), (75, 260889), (95, 205965), (115, 170145), (171, 114425), (199, 98325), (207, 94525), (225, 86963), (285, 68655), (345, 56715), (437, 44775), (475, 41193), (575, 34029), (597, 32775), (855, 22885), (995, 19665), (1035, 18905), (1311, 14925), (1425, 13731), (1725, 11343), (1791, 10925), (2185, 8955), (2985, 6555), (3781, 5175), (3933, 4975), (4275, 4577)]