28851975

素因数分解:

$3^2\times 5^2\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{397}}^1$

素因数の和:449

約数の個数: 72

約数和(自身を含む): 57741840

約数和(自身を除く): 28889865

約数列:

[1, 3, 5, 9, 15, 17, 19, 25, 45, 51, 57, 75, 85, 95, 153, 171, 225, 255, 285, 323, 397, 425, 475, 765, 855, 969, 1191, 1275, 1425, 1615, 1985, 2907, 3573, 3825, 4275, 4845, 5955, 6749, 7543, 8075, 9925, 14535, 17865, 20247, 22629, 24225, 29775, 33745, 37715, 60741, 67887, 72675, 89325, 101235, 113145, 128231, 168725, 188575, 303705, 339435, 384693, 506175, 565725, 641155, 1154079, 1518525, 1697175, 1923465, 3205775, 5770395, 9617325, 28851975]

約数ペア:

[(1, 28851975), (3, 9617325), (5, 5770395), (9, 3205775), (15, 1923465), (17, 1697175), (19, 1518525), (25, 1154079), (45, 641155), (51, 565725), (57, 506175), (75, 384693), (85, 339435), (95, 303705), (153, 188575), (171, 168725), (225, 128231), (255, 113145), (285, 101235), (323, 89325), (397, 72675), (425, 67887), (475, 60741), (765, 37715), (855, 33745), (969, 29775), (1191, 24225), (1275, 22629), (1425, 20247), (1615, 17865), (1985, 14535), (2907, 9925), (3573, 8075), (3825, 7543), (4275, 6749), (4845, 5955)]