71221990

素因数分解:

$2^1\times 5^1\times 7^2\times {\mathrm{191}}^1\times {\mathrm{761}}^1$

素因数の和:973

約数の個数: 48

約数和(自身を含む): 150107904

約数和(自身を除く): 78885914

約数列:

[1, 2, 5, 7, 10, 14, 35, 49, 70, 98, 191, 245, 382, 490, 761, 955, 1337, 1522, 1910, 2674, 3805, 5327, 6685, 7610, 9359, 10654, 13370, 18718, 26635, 37289, 46795, 53270, 74578, 93590, 145351, 186445, 290702, 372890, 726755, 1017457, 1453510, 2034914, 5087285, 7122199, 10174570, 14244398, 35610995, 71221990]

約数ペア:

[(1, 71221990), (2, 35610995), (5, 14244398), (7, 10174570), (10, 7122199), (14, 5087285), (35, 2034914), (49, 1453510), (70, 1017457), (98, 726755), (191, 372890), (245, 290702), (382, 186445), (490, 145351), (761, 93590), (955, 74578), (1337, 53270), (1522, 46795), (1910, 37289), (2674, 26635), (3805, 18718), (5327, 13370), (6685, 10654), (7610, 9359)]