72205425

素因数分解:

$3^4\times 5^2\times {\mathrm{181}}^1\times {\mathrm{197}}^1$

素因数の和:400

約数の個数: 60

約数和(自身を含む): 135171036

約数和(自身を除く): 62965611

約数列:

[1, 3, 5, 9, 15, 25, 27, 45, 75, 81, 135, 181, 197, 225, 405, 543, 591, 675, 905, 985, 1629, 1773, 2025, 2715, 2955, 4525, 4887, 4925, 5319, 8145, 8865, 13575, 14661, 14775, 15957, 24435, 26595, 35657, 40725, 44325, 73305, 79785, 106971, 122175, 132975, 178285, 320913, 366525, 398925, 534855, 891425, 962739, 1604565, 2674275, 2888217, 4813695, 8022825, 14441085, 24068475, 72205425]

約数ペア:

[(1, 72205425), (3, 24068475), (5, 14441085), (9, 8022825), (15, 4813695), (25, 2888217), (27, 2674275), (45, 1604565), (75, 962739), (81, 891425), (135, 534855), (181, 398925), (197, 366525), (225, 320913), (405, 178285), (543, 132975), (591, 122175), (675, 106971), (905, 79785), (985, 73305), (1629, 44325), (1773, 40725), (2025, 35657), (2715, 26595), (2955, 24435), (4525, 15957), (4887, 14775), (4925, 14661), (5319, 13575), (8145, 8865)]