51780225

素因数分解:

$3^1\times 5^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{179}}^1$

素因数の和:247

約数の個数: 96

約数和(自身を含む): 107136000

約数和(自身を除く): 55355775

約数列:

[1, 3, 5, 7, 15, 19, 21, 25, 29, 35, 57, 75, 87, 95, 105, 133, 145, 175, 179, 203, 285, 399, 435, 475, 525, 537, 551, 609, 665, 725, 895, 1015, 1253, 1425, 1653, 1995, 2175, 2685, 2755, 3045, 3325, 3401, 3759, 3857, 4475, 5075, 5191, 6265, 8265, 9975, 10203, 11571, 13425, 13775, 15225, 15573, 17005, 18795, 19285, 23807, 25955, 31325, 36337, 41325, 51015, 57855, 71421, 77865, 85025, 93975, 96425, 98629, 109011, 119035, 129775, 181685, 255075, 289275, 295887, 357105, 389325, 493145, 545055, 595175, 690403, 908425, 1479435, 1785525, 2071209, 2465725, 2725275, 3452015, 7397175, 10356045, 17260075, 51780225]

約数ペア:

[(1, 51780225), (3, 17260075), (5, 10356045), (7, 7397175), (15, 3452015), (19, 2725275), (21, 2465725), (25, 2071209), (29, 1785525), (35, 1479435), (57, 908425), (75, 690403), (87, 595175), (95, 545055), (105, 493145), (133, 389325), (145, 357105), (175, 295887), (179, 289275), (203, 255075), (285, 181685), (399, 129775), (435, 119035), (475, 109011), (525, 98629), (537, 96425), (551, 93975), (609, 85025), (665, 77865), (725, 71421), (895, 57855), (1015, 51015), (1253, 41325), (1425, 36337), (1653, 31325), (1995, 25955), (2175, 23807), (2685, 19285), (2755, 18795), (3045, 17005), (3325, 15573), (3401, 15225), (3759, 13775), (3857, 13425), (4475, 11571), (5075, 10203), (5191, 9975), (6265, 8265)]