81579850

素因数分解:

$2^1\times 5^2\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{6449}}^1$

素因数の和:6495

約数の個数: 48

約数和(自身を含む): 172756800

約数和(自身を除く): 91176950

約数列:

[1, 2, 5, 10, 11, 22, 23, 25, 46, 50, 55, 110, 115, 230, 253, 275, 506, 550, 575, 1150, 1265, 2530, 6325, 6449, 12650, 12898, 32245, 64490, 70939, 141878, 148327, 161225, 296654, 322450, 354695, 709390, 741635, 1483270, 1631597, 1773475, 3263194, 3546950, 3708175, 7416350, 8157985, 16315970, 40789925, 81579850]

約数ペア:

[(1, 81579850), (2, 40789925), (5, 16315970), (10, 8157985), (11, 7416350), (22, 3708175), (23, 3546950), (25, 3263194), (46, 1773475), (50, 1631597), (55, 1483270), (110, 741635), (115, 709390), (230, 354695), (253, 322450), (275, 296654), (506, 161225), (550, 148327), (575, 141878), (1150, 70939), (1265, 64490), (2530, 32245), (6325, 12898), (6449, 12650)]