20376304

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{163}}^1\times {\mathrm{601}}^1$

素因数の和:785

約数の個数: 40

約数和(自身を含む): 42847952

約数和(自身を除く): 22471648

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 163, 208, 326, 601, 652, 1202, 1304, 2119, 2404, 2608, 4238, 4808, 7813, 8476, 9616, 15626, 16952, 31252, 33904, 62504, 97963, 125008, 195926, 391852, 783704, 1273519, 1567408, 2547038, 5094076, 10188152, 20376304]

約数ペア:

[(1, 20376304), (2, 10188152), (4, 5094076), (8, 2547038), (13, 1567408), (16, 1273519), (26, 783704), (52, 391852), (104, 195926), (163, 125008), (208, 97963), (326, 62504), (601, 33904), (652, 31252), (1202, 16952), (1304, 15626), (2119, 9616), (2404, 8476), (2608, 7813), (4238, 4808)]