19642960

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{12923}}^1$

素因数の和:12955

約数の個数: 40

約数和(自身を含む): 48077280

約数和(自身を除く): 28434320

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 38, 40, 76, 80, 95, 152, 190, 304, 380, 760, 1520, 12923, 25846, 51692, 64615, 103384, 129230, 206768, 245537, 258460, 491074, 516920, 982148, 1033840, 1227685, 1964296, 2455370, 3928592, 4910740, 9821480, 19642960]

約数ペア:

[(1, 19642960), (2, 9821480), (4, 4910740), (5, 3928592), (8, 2455370), (10, 1964296), (16, 1227685), (19, 1033840), (20, 982148), (38, 516920), (40, 491074), (76, 258460), (80, 245537), (95, 206768), (152, 129230), (190, 103384), (304, 64615), (380, 51692), (760, 25846), (1520, 12923)]