20004201568

素因数分解:

$2^5\times {\mathrm{13}}^1\times {\mathrm{229}}^1\times {\mathrm{209987}}^1$

素因数の和:210239

約数の個数: 48

約数和(自身を含む): 42598165680

約数和(自身を除く): 22593964112

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 52, 104, 208, 229, 416, 458, 916, 1832, 2977, 3664, 5954, 7328, 11908, 23816, 47632, 95264, 209987, 419974, 839948, 1679896, 2729831, 3359792, 5459662, 6719584, 10919324, 21838648, 43677296, 48087023, 87354592, 96174046, 192348092, 384696184, 625131299, 769392368, 1250262598, 1538784736, 2500525196, 5001050392, 10002100784, 20004201568]

約数ペア:

[(1, 20004201568), (2, 10002100784), (4, 5001050392), (8, 2500525196), (13, 1538784736), (16, 1250262598), (26, 769392368), (32, 625131299), (52, 384696184), (104, 192348092), (208, 96174046), (229, 87354592), (416, 48087023), (458, 43677296), (916, 21838648), (1832, 10919324), (2977, 6719584), (3664, 5459662), (5954, 3359792), (7328, 2729831), (11908, 1679896), (23816, 839948), (47632, 419974), (95264, 209987)]