20104109725

素因数分解:

$5^2\times 7^1\times {\mathrm{53}}^1\times {\mathrm{71}}^1\times {\mathrm{30529}}^1$

素因数の和:30670

約数の個数: 48

約数和(自身を含む): 29437758720

約数和(自身を除く): 9333648995

約数列:

[1, 5, 7, 25, 35, 53, 71, 175, 265, 355, 371, 497, 1325, 1775, 1855, 2485, 3763, 9275, 12425, 18815, 26341, 30529, 94075, 131705, 152645, 213703, 658525, 763225, 1068515, 1618037, 2167559, 5342575, 8090185, 10837795, 11326259, 15172913, 40450925, 54188975, 56631295, 75864565, 114880627, 283156475, 379322825, 574403135, 804164389, 2872015675, 4020821945, 20104109725]

約数ペア:

[(1, 20104109725), (5, 4020821945), (7, 2872015675), (25, 804164389), (35, 574403135), (53, 379322825), (71, 283156475), (175, 114880627), (265, 75864565), (355, 56631295), (371, 54188975), (497, 40450925), (1325, 15172913), (1775, 11326259), (1855, 10837795), (2485, 8090185), (3763, 5342575), (9275, 2167559), (12425, 1618037), (18815, 1068515), (26341, 763225), (30529, 658525), (94075, 213703), (131705, 152645)]