20304804

素因数分解:

$2^2\times 3^1\times {\mathrm{13}}^1\times {\mathrm{73}}^1\times {\mathrm{1783}}^1$

素因数の和:1876

約数の個数: 48

約数和(自身を含む): 51750272

約数和(自身を除く): 31445468

約数列:

[1, 2, 3, 4, 6, 12, 13, 26, 39, 52, 73, 78, 146, 156, 219, 292, 438, 876, 949, 1783, 1898, 2847, 3566, 3796, 5349, 5694, 7132, 10698, 11388, 21396, 23179, 46358, 69537, 92716, 130159, 139074, 260318, 278148, 390477, 520636, 780954, 1561908, 1692067, 3384134, 5076201, 6768268, 10152402, 20304804]

約数ペア:

[(1, 20304804), (2, 10152402), (3, 6768268), (4, 5076201), (6, 3384134), (12, 1692067), (13, 1561908), (26, 780954), (39, 520636), (52, 390477), (73, 278148), (78, 260318), (146, 139074), (156, 130159), (219, 92716), (292, 69537), (438, 46358), (876, 23179), (949, 21396), (1783, 11388), (1898, 10698), (2847, 7132), (3566, 5694), (3796, 5349)]