27720721795

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{73}}^1\times {\mathrm{137}}^1\times {\mathrm{42643}}^1$

素因数の和:42871

約数の個数: 32

約数和(自身を含む): 36580364352

約数和(自身を除く): 8859642557

約数列:

[1, 5, 13, 65, 73, 137, 365, 685, 949, 1781, 4745, 8905, 10001, 42643, 50005, 130013, 213215, 554359, 650065, 2771795, 3112939, 5842091, 15564695, 29210455, 40468207, 75947183, 202341035, 379735915, 426472643, 2132363215, 5544144359, 27720721795]

約数ペア:

[(1, 27720721795), (5, 5544144359), (13, 2132363215), (65, 426472643), (73, 379735915), (137, 202341035), (365, 75947183), (685, 40468207), (949, 29210455), (1781, 15564695), (4745, 5842091), (8905, 3112939), (10001, 2771795), (42643, 650065), (50005, 554359), (130013, 213215)]