71389220

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{419}}^1\times {\mathrm{1217}}^1$

素因数の和:1652

約数の個数: 48

約数和(自身を含む): 171884160

約数和(自身を除く): 100494940

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 419, 838, 1217, 1676, 2095, 2434, 2933, 4190, 4868, 5866, 6085, 8380, 8519, 11732, 12170, 14665, 17038, 24340, 29330, 34076, 42595, 58660, 85190, 170380, 509923, 1019846, 2039692, 2549615, 3569461, 5099230, 7138922, 10198460, 14277844, 17847305, 35694610, 71389220]

約数ペア:

[(1, 71389220), (2, 35694610), (4, 17847305), (5, 14277844), (7, 10198460), (10, 7138922), (14, 5099230), (20, 3569461), (28, 2549615), (35, 2039692), (70, 1019846), (140, 509923), (419, 170380), (838, 85190), (1217, 58660), (1676, 42595), (2095, 34076), (2434, 29330), (2933, 24340), (4190, 17038), (4868, 14665), (5866, 12170), (6085, 11732), (8380, 8519)]