80432860

素因数分解:

$2^2\times 5^1\times {\mathrm{73}}^1\times {\mathrm{89}}^1\times {\mathrm{619}}^1$

素因数の和:790

約数の個数: 48

約数和(自身を含む): 173426400

約数和(自身を除く): 92993540

約数列:

[1, 2, 4, 5, 10, 20, 73, 89, 146, 178, 292, 356, 365, 445, 619, 730, 890, 1238, 1460, 1780, 2476, 3095, 6190, 6497, 12380, 12994, 25988, 32485, 45187, 55091, 64970, 90374, 110182, 129940, 180748, 220364, 225935, 275455, 451870, 550910, 903740, 1101820, 4021643, 8043286, 16086572, 20108215, 40216430, 80432860]

約数ペア:

[(1, 80432860), (2, 40216430), (4, 20108215), (5, 16086572), (10, 8043286), (20, 4021643), (73, 1101820), (89, 903740), (146, 550910), (178, 451870), (292, 275455), (356, 225935), (365, 220364), (445, 180748), (619, 129940), (730, 110182), (890, 90374), (1238, 64970), (1460, 55091), (1780, 45187), (2476, 32485), (3095, 25988), (6190, 12994), (6497, 12380)]