28908180

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{22943}}^1$

素因数の和:22965

約数の個数: 72

約数和(自身を含む): 100219392

約数和(自身を除く): 71311212

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 28, 30, 35, 36, 42, 45, 60, 63, 70, 84, 90, 105, 126, 140, 180, 210, 252, 315, 420, 630, 1260, 22943, 45886, 68829, 91772, 114715, 137658, 160601, 206487, 229430, 275316, 321202, 344145, 412974, 458860, 481803, 642404, 688290, 803005, 825948, 963606, 1032435, 1376580, 1445409, 1606010, 1927212, 2064870, 2409015, 2890818, 3212020, 4129740, 4818030, 5781636, 7227045, 9636060, 14454090, 28908180]

約数ペア:

[(1, 28908180), (2, 14454090), (3, 9636060), (4, 7227045), (5, 5781636), (6, 4818030), (7, 4129740), (9, 3212020), (10, 2890818), (12, 2409015), (14, 2064870), (15, 1927212), (18, 1606010), (20, 1445409), (21, 1376580), (28, 1032435), (30, 963606), (35, 825948), (36, 803005), (42, 688290), (45, 642404), (60, 481803), (63, 458860), (70, 412974), (84, 344145), (90, 321202), (105, 275316), (126, 229430), (140, 206487), (180, 160601), (210, 137658), (252, 114715), (315, 91772), (420, 68829), (630, 45886), (1260, 22943)]