78162040

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{349}}^1\times {\mathrm{509}}^1$

素因数の和:880

約数の個数: 64

約数和(自身を含む): 192780000

約数和(自身を除く): 114617960

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 349, 440, 509, 698, 1018, 1396, 1745, 2036, 2545, 2792, 3490, 3839, 4072, 5090, 5599, 6980, 7678, 10180, 11198, 13960, 15356, 19195, 20360, 22396, 27995, 30712, 38390, 44792, 55990, 76780, 111980, 153560, 177641, 223960, 355282, 710564, 888205, 1421128, 1776410, 1954051, 3552820, 3908102, 7105640, 7816204, 9770255, 15632408, 19540510, 39081020, 78162040]

約数ペア:

[(1, 78162040), (2, 39081020), (4, 19540510), (5, 15632408), (8, 9770255), (10, 7816204), (11, 7105640), (20, 3908102), (22, 3552820), (40, 1954051), (44, 1776410), (55, 1421128), (88, 888205), (110, 710564), (220, 355282), (349, 223960), (440, 177641), (509, 153560), (698, 111980), (1018, 76780), (1396, 55990), (1745, 44792), (2036, 38390), (2545, 30712), (2792, 27995), (3490, 22396), (3839, 20360), (4072, 19195), (5090, 15356), (5599, 13960), (6980, 11198), (7678, 10180)]