28617225

素因数分解:

$3^1\times 5^2\times 7^2\times {\mathrm{13}}^1\times {\mathrm{599}}^1$

素因数の和:639

約数の個数: 72

約数和(自身を含む): 59371200

約数和(自身を除く): 30753975

約数列:

[1, 3, 5, 7, 13, 15, 21, 25, 35, 39, 49, 65, 75, 91, 105, 147, 175, 195, 245, 273, 325, 455, 525, 599, 637, 735, 975, 1225, 1365, 1797, 1911, 2275, 2995, 3185, 3675, 4193, 6825, 7787, 8985, 9555, 12579, 14975, 15925, 20965, 23361, 29351, 38935, 44925, 47775, 54509, 62895, 88053, 104825, 116805, 146755, 163527, 194675, 272545, 314475, 381563, 440265, 584025, 733775, 817635, 1144689, 1362725, 1907815, 2201325, 4088175, 5723445, 9539075, 28617225]

約数ペア:

[(1, 28617225), (3, 9539075), (5, 5723445), (7, 4088175), (13, 2201325), (15, 1907815), (21, 1362725), (25, 1144689), (35, 817635), (39, 733775), (49, 584025), (65, 440265), (75, 381563), (91, 314475), (105, 272545), (147, 194675), (175, 163527), (195, 146755), (245, 116805), (273, 104825), (325, 88053), (455, 62895), (525, 54509), (599, 47775), (637, 44925), (735, 38935), (975, 29351), (1225, 23361), (1365, 20965), (1797, 15925), (1911, 14975), (2275, 12579), (2995, 9555), (3185, 8985), (3675, 7787), (4193, 6825)]