80513580

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{191699}}^1$

素因数の和:191718

約数の個数: 48

約数和(自身を含む): 257644800

約数和(自身を除く): 177131220

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, 191699, 383398, 575097, 766796, 958495, 1150194, 1341893, 1916990, 2300388, 2683786, 2875485, 3833980, 4025679, 5367572, 5750970, 6709465, 8051358, 11501940, 13418930, 16102716, 20128395, 26837860, 40256790, 80513580]

約数ペア:

[(1, 80513580), (2, 40256790), (3, 26837860), (4, 20128395), (5, 16102716), (6, 13418930), (7, 11501940), (10, 8051358), (12, 6709465), (14, 5750970), (15, 5367572), (20, 4025679), (21, 3833980), (28, 2875485), (30, 2683786), (35, 2300388), (42, 1916990), (60, 1341893), (70, 1150194), (84, 958495), (105, 766796), (140, 575097), (210, 383398), (420, 191699)]