81977805

素因数分解:

$3^3\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{6673}}^1$

素因数の和:6707

約数の個数: 64

約数和(自身を含む): 179397120

約数和(自身を除く): 97419315

約数列:

[1, 3, 5, 7, 9, 13, 15, 21, 27, 35, 39, 45, 63, 65, 91, 105, 117, 135, 189, 195, 273, 315, 351, 455, 585, 819, 945, 1365, 1755, 2457, 4095, 6673, 12285, 20019, 33365, 46711, 60057, 86749, 100095, 140133, 180171, 233555, 260247, 300285, 420399, 433745, 607243, 700665, 780741, 900855, 1261197, 1301235, 1821729, 2101995, 2342223, 3036215, 3903705, 5465187, 6305985, 9108645, 11711115, 16395561, 27325935, 81977805]

約数ペア:

[(1, 81977805), (3, 27325935), (5, 16395561), (7, 11711115), (9, 9108645), (13, 6305985), (15, 5465187), (21, 3903705), (27, 3036215), (35, 2342223), (39, 2101995), (45, 1821729), (63, 1301235), (65, 1261197), (91, 900855), (105, 780741), (117, 700665), (135, 607243), (189, 433745), (195, 420399), (273, 300285), (315, 260247), (351, 233555), (455, 180171), (585, 140133), (819, 100095), (945, 86749), (1365, 60057), (1755, 46711), (2457, 33365), (4095, 20019), (6673, 12285)]