1915209940

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{673}}^1\times {\mathrm{20327}}^1$

素因数の和:21016

約数の個数: 48

約数和(自身を含む): 4603560192

約数和(自身を除く): 2688350252

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 673, 1346, 2692, 3365, 4711, 6730, 9422, 13460, 18844, 20327, 23555, 40654, 47110, 81308, 94220, 101635, 142289, 203270, 284578, 406540, 569156, 711445, 1422890, 2845780, 13680071, 27360142, 54720284, 68400355, 95760497, 136800710, 191520994, 273601420, 383041988, 478802485, 957604970, 1915209940]

約数ペア:

[(1, 1915209940), (2, 957604970), (4, 478802485), (5, 383041988), (7, 273601420), (10, 191520994), (14, 136800710), (20, 95760497), (28, 68400355), (35, 54720284), (70, 27360142), (140, 13680071), (673, 2845780), (1346, 1422890), (2692, 711445), (3365, 569156), (4711, 406540), (6730, 284578), (9422, 203270), (13460, 142289), (18844, 101635), (20327, 94220), (23555, 81308), (40654, 47110)]