20971350

素因数分解:

$2^1\times 3^2\times 5^2\times {\mathrm{29}}^1\times {\mathrm{1607}}^1$

素因数の和:1654

約数の個数: 72

約数和(自身を含む): 58322160

約数和(自身を除く): 37350810

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 25, 29, 30, 45, 50, 58, 75, 87, 90, 145, 150, 174, 225, 261, 290, 435, 450, 522, 725, 870, 1305, 1450, 1607, 2175, 2610, 3214, 4350, 4821, 6525, 8035, 9642, 13050, 14463, 16070, 24105, 28926, 40175, 46603, 48210, 72315, 80350, 93206, 120525, 139809, 144630, 233015, 241050, 279618, 361575, 419427, 466030, 699045, 723150, 838854, 1165075, 1398090, 2097135, 2330150, 3495225, 4194270, 6990450, 10485675, 20971350]

約数ペア:

[(1, 20971350), (2, 10485675), (3, 6990450), (5, 4194270), (6, 3495225), (9, 2330150), (10, 2097135), (15, 1398090), (18, 1165075), (25, 838854), (29, 723150), (30, 699045), (45, 466030), (50, 419427), (58, 361575), (75, 279618), (87, 241050), (90, 233015), (145, 144630), (150, 139809), (174, 120525), (225, 93206), (261, 80350), (290, 72315), (435, 48210), (450, 46603), (522, 40175), (725, 28926), (870, 24105), (1305, 16070), (1450, 14463), (1607, 13050), (2175, 9642), (2610, 8035), (3214, 6525), (4350, 4821)]