20410845

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{787}}^1$

素因数の和:834

約数の個数: 64

約数和(自身を含む): 42362880

約数和(自身を除く): 21952035

約数列:

[1, 3, 5, 7, 13, 15, 19, 21, 35, 39, 57, 65, 91, 95, 105, 133, 195, 247, 273, 285, 399, 455, 665, 741, 787, 1235, 1365, 1729, 1995, 2361, 3705, 3935, 5187, 5509, 8645, 10231, 11805, 14953, 16527, 25935, 27545, 30693, 44859, 51155, 71617, 74765, 82635, 104671, 153465, 194389, 214851, 224295, 314013, 358085, 523355, 583167, 971945, 1074255, 1360723, 1570065, 2915835, 4082169, 6803615, 20410845]

約数ペア:

[(1, 20410845), (3, 6803615), (5, 4082169), (7, 2915835), (13, 1570065), (15, 1360723), (19, 1074255), (21, 971945), (35, 583167), (39, 523355), (57, 358085), (65, 314013), (91, 224295), (95, 214851), (105, 194389), (133, 153465), (195, 104671), (247, 82635), (273, 74765), (285, 71617), (399, 51155), (455, 44859), (665, 30693), (741, 27545), (787, 25935), (1235, 16527), (1365, 14953), (1729, 11805), (1995, 10231), (2361, 8645), (3705, 5509), (3935, 5187)]