20054125

素因数分解:

$5^3\times 7^1\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{43}}^1$

素因数の和:119

約数の個数: 64

約数和(自身を含む): 32288256

約数和(自身を除く): 12234131

約数列:

[1, 5, 7, 13, 25, 35, 41, 43, 65, 91, 125, 175, 205, 215, 287, 301, 325, 455, 533, 559, 875, 1025, 1075, 1435, 1505, 1625, 1763, 2275, 2665, 2795, 3731, 3913, 5125, 5375, 7175, 7525, 8815, 11375, 12341, 13325, 13975, 18655, 19565, 22919, 35875, 37625, 44075, 61705, 66625, 69875, 93275, 97825, 114595, 160433, 220375, 308525, 466375, 489125, 572975, 802165, 1542625, 2864875, 4010825, 20054125]

約数ペア:

[(1, 20054125), (5, 4010825), (7, 2864875), (13, 1542625), (25, 802165), (35, 572975), (41, 489125), (43, 466375), (65, 308525), (91, 220375), (125, 160433), (175, 114595), (205, 97825), (215, 93275), (287, 69875), (301, 66625), (325, 61705), (455, 44075), (533, 37625), (559, 35875), (875, 22919), (1025, 19565), (1075, 18655), (1435, 13975), (1505, 13325), (1625, 12341), (1763, 11375), (2275, 8815), (2665, 7525), (2795, 7175), (3731, 5375), (3913, 5125)]