81005284

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{28807}}^1$

素因数の和:28867

約数の個数: 24

約数和(自身を含む): 153258560

約数和(自身を除く): 72253276

約数列:

[1, 2, 4, 19, 37, 38, 74, 76, 148, 703, 1406, 2812, 28807, 57614, 115228, 547333, 1065859, 1094666, 2131718, 2189332, 4263436, 20251321, 40502642, 81005284]

約数ペア:

[(1, 81005284), (2, 40502642), (4, 20251321), (19, 4263436), (37, 2189332), (38, 2131718), (74, 1094666), (76, 1065859), (148, 547333), (703, 115228), (1406, 57614), (2812, 28807)]