81226990

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{10243}}^1$

素因数の和:10324

約数の個数: 32

約数和(自身を含む): 160052256

約数和(自身を除く): 78825266

約数列:

[1, 2, 5, 10, 13, 26, 61, 65, 122, 130, 305, 610, 793, 1586, 3965, 7930, 10243, 20486, 51215, 102430, 133159, 266318, 624823, 665795, 1249646, 1331590, 3124115, 6248230, 8122699, 16245398, 40613495, 81226990]

約数ペア:

[(1, 81226990), (2, 40613495), (5, 16245398), (10, 8122699), (13, 6248230), (26, 3124115), (61, 1331590), (65, 1249646), (122, 665795), (130, 624823), (305, 266318), (610, 133159), (793, 102430), (1586, 51215), (3965, 20486), (7930, 10243)]