28505256

素因数分解:

$2^3\times 3^1\times {\mathrm{13}}^1\times {\mathrm{211}}^1\times {\mathrm{433}}^1$

素因数の和:666

約数の個数: 64

約数和(自身を含む): 77286720

約数和(自身を除く): 48781464

約数列:

[1, 2, 3, 4, 6, 8, 12, 13, 24, 26, 39, 52, 78, 104, 156, 211, 312, 422, 433, 633, 844, 866, 1266, 1299, 1688, 1732, 2532, 2598, 2743, 3464, 5064, 5196, 5486, 5629, 8229, 10392, 10972, 11258, 16458, 16887, 21944, 22516, 32916, 33774, 45032, 65832, 67548, 91363, 135096, 182726, 274089, 365452, 548178, 730904, 1096356, 1187719, 2192712, 2375438, 3563157, 4750876, 7126314, 9501752, 14252628, 28505256]

約数ペア:

[(1, 28505256), (2, 14252628), (3, 9501752), (4, 7126314), (6, 4750876), (8, 3563157), (12, 2375438), (13, 2192712), (24, 1187719), (26, 1096356), (39, 730904), (52, 548178), (78, 365452), (104, 274089), (156, 182726), (211, 135096), (312, 91363), (422, 67548), (433, 65832), (633, 45032), (844, 33774), (866, 32916), (1266, 22516), (1299, 21944), (1688, 16887), (1732, 16458), (2532, 11258), (2598, 10972), (2743, 10392), (3464, 8229), (5064, 5629), (5196, 5486)]