81576390

素因数分解:

$2^1\times 3^1\times 5^1\times 7^1\times {\mathrm{388459}}^1$

素因数の和:388476

約数の個数: 32

約数和(自身を含む): 223752960

約数和(自身を除く): 142176570

約数列:

[1, 2, 3, 5, 6, 7, 10, 14, 15, 21, 30, 35, 42, 70, 105, 210, 388459, 776918, 1165377, 1942295, 2330754, 2719213, 3884590, 5438426, 5826885, 8157639, 11653770, 13596065, 16315278, 27192130, 40788195, 81576390]

約数ペア:

[(1, 81576390), (2, 40788195), (3, 27192130), (5, 16315278), (6, 13596065), (7, 11653770), (10, 8157639), (14, 5826885), (15, 5438426), (21, 3884590), (30, 2719213), (35, 2330754), (42, 1942295), (70, 1165377), (105, 776918), (210, 388459)]