80243940

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{191057}}^1$

素因数の和:191076

約数の個数: 48

約数和(自身を含む): 256781952

約数和(自身を除く): 176538012

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 420, 191057, 382114, 573171, 764228, 955285, 1146342, 1337399, 1910570, 2292684, 2674798, 2865855, 3821140, 4012197, 5349596, 5731710, 6686995, 8024394, 11463420, 13373990, 16048788, 20060985, 26747980, 40121970, 80243940]

約数ペア:

[(1, 80243940), (2, 40121970), (3, 26747980), (4, 20060985), (5, 16048788), (6, 13373990), (7, 11463420), (10, 8024394), (12, 6686995), (14, 5731710), (15, 5349596), (20, 4012197), (21, 3821140), (28, 2865855), (30, 2674798), (35, 2292684), (42, 1910570), (60, 1337399), (70, 1146342), (84, 955285), (105, 764228), (140, 573171), (210, 382114), (420, 191057)]